William Vainqueur

{{short description|French footballer (born 1988)}} {{Use dmy dates|date=November 2019}} {{Infobox football biography | name = William Vainqueur | image = Dinamo-Ufa (8).jpg | caption = Vainqueur warming up for [[FC Dynamo Moscow|Dynamo Moscow]] in 2015. | fullname = William Jacques Vainqueur<ref>{{cite web |url=https://www.uefa.com/MultimediaFiles/Download/uefaorg/UEFACompDisCases/02/21/24/15/2212415_DOWNLOAD.pdf |title=UEFA Europa League 2014/2015: Booking List before Round of 32, 2nd leg |publisher=UEFA |page=7 |access-date=29 September 2019}}</ref> | birth_date = {{birth date and age|1988|11|19|df=y}} | birth_place = [[Neuilly-sur-Marne]], France | height = 1.79 m<ref name="L'Équipe"/> | position = [[Midfielder]] | currentclub = | clubnumber = | youthyears1 = 2002–2006 | youthclubs1 = [[FC Nantes|Nantes]] | years1 = 2006–2011 | clubs1 = [[FC Nantes|Nantes]] | caps1 = 92 | goals1 = 1 | years2 = 2011–2014 | clubs2 = [[Standard Liège]] | caps2 = 89 | goals2 = 5 | years3 = 2014–2015 | clubs3 = [[FC Dynamo Moscow|Dynamo Moscow]] | caps3 = 28 | goals3 = 2 | years4 = 2015–2017 | clubs4 = [[A.S. Roma|Roma]] | caps4 = 16 | goals4 = 0 | years5 = 2016–2017 | clubs5 = → [[Olympique de Marseille|Marseille]] (loan) | caps5 = 29 | goals5 = 0 | years6 = 2017–2020 | clubs6 = [[Antalyaspor]] | caps6 = 26 | goals6 = 0 | years7 = 2019 | clubs7 = → [[AS Monaco FC|Monaco]] (loan) | caps7 = 3 | goals7 = 0 | years8 = 2019–2020 | clubs8 = → [[Toulouse FC|Toulouse]] (loan) | caps8 = 21 | goals8 = 0 | nationalyears1 = 2007 | nationalteam1 = [[France national under-19 football team|France U19]] | nationalcaps1 = 1 | nationalgoals1 = 0 | nationalyears2 = 2009 | nationalteam2 = [[France national under-21 football team|France U21]] | nationalcaps2 = 1 | nationalgoals2 = 0 | club-update = | nationalteam-update = }}

'''William Jacques Vainqueur''' (born 19 November 1988) is a French former professional [[Association football|footballer]] who played as a [[midfielder]]. He mostly played as a central or defensive midfielder position.<ref>{{cite news |script-title=ru:Вильям Венкер: Играю на позиции центрального полузащитника|url=https://www.sovsport.ru/football/news/731012-viljam-venker-igraju-na-pozicii-centralnogo-poluzaschitnika|publisher=Soviet Sports|language=ru|date=27 June 2014|access-date=23 September 2018}}</ref>

==Club career== ===FC Nantes=== Born in [[Neuilly-sur-Marne]], a commune in the eastern suburbs of [[Paris]], Vainqueur joined Noisy-le-Grand FC at the age of 8.<ref name="Vainqueur Dynamo Biography">{{cite web|url=https://www.fcdynamo.ru/news/blog/?id_4=5682 |script-title=ru:Вильям Победителев. Представление Вильяма Ванкера|publisher=FC Dynamo Moscow|language=ru|date=17 July 2014|access-date=23 September 2018|archive-url=https://web.archive.org/web/20140719004414/http://fcdynamo.ru/news/blog/?id_4=5682|archive-date=19 July 2014|url-status=live}}</ref> In 2001, he moved to the youth system of [[AJ Auxerre]] and spent one year there, before being released.<ref name="Vainqueur Dynamo Biography"/> After his release by Auxerre, Vainqueur continued to train, to work on himself, leading to re–join Bussy-Saint-Georges FC.<ref name="Vainqueur Dynamo Biography"/> There, he was discovered at the age 14 by [[FC Nantes]]'s scout team.<ref name="L'Équipe">{{cite news|title=William Vainqueur|url=https://www.lequipe.fr/Football/FootballFicheJoueur26683.html|access-date=4 October 2011|newspaper=L'Équipe|language=fr}}</ref><ref name="Vainqueur FC Nantes Background">{{cite web|title=Joueur - William VAINQUEUR - FFF|url=https://www.fff.fr/equipes-de-france/tous-les-joueurs/fiche-joueur/811820272-william-vainqueur|website=Fédération Française de Football|access-date=26 September 2016|language=fr|archiveurl=https://web.archive.org/web/20150924142808/https://www.fff.fr/equipes-de-france/tous-les-joueurs/fiche-joueur/811820272-william-vainqueur|archive-date=24 September 2015|url-status=dead}}</ref><ref name="Vainquerer Haiti">{{cite news|last1=Aude|first1=Prince|title=Un joueur d'origine haïtienne à l'AS Rome !|url=http://www.lenational.org/un-joueur-dorigine-haitienne-a-las-rome/|access-date=26 September 2016|work=La National|date=30 August 2015|language=fr |archiveurl=https://web.archive.org/web/20160927221332/https://www.lenational.org/un-joueur-dorigine-haitienne-a-las-rome/|archive-date=27 September 2016|url-status=dead}}</ref><ref name="Vainquerer Contract">{{cite news|last1=Jacquin|first1=Alexandre|title=OM : Vainqueur, made in Nantes|url=https://www.laprovence.com/article/om/4130325/vainqueur-made-in-nantes.html|access-date=26 September 2016|work=[[La Provence]]|date=25 September 2016|language=fr}}</ref> However, moving to [[Nantes]] in [[Pays de la Loire]] saw Vainqueur move away, as he saw his family once every month.<ref>{{cite news |script-title=ru:Вильям Венкер: «Во Франции селекционеры часто заезжают в гетто – меня так и заметили»|url=https://www.sports.ru/football/1028789327.html|publisher=Sports.ru|language=ru|date=11 April 2015|access-date=23 September 2018}}</ref>

Having progressed through the youth system at [[FC Nantes|Nantes]],<ref>{{cite news|title=TOUT SOURIT À VAINQUEUR|url=http://www.football365.fr/tout-sourit-a-vainqueur-1179385.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018 |archiveurl=https://web.archive.org/web/20180915153416/http://www.football365.fr/tout-sourit-a-vainqueur-1179385.html|archive-date=15 September 2018|url-status=dead}}</ref><ref name="Vainqueur Dynamo Biography"/> Vainqueur made his senior debut during the [[2006–07 Ligue 1]] season, where he started the match before coming off in the 69th minute for [[Miloš Dimitrijević]], in a 0–0 draw against Olympique de Marseille on 18 February 2007.<ref>{{cite web|url=http://fcna.fr/articles/20062007/MarseilleFcna180207.php|title=OM 0-0 FCNA : Ca vaut plus qu'un point!|website=FC Nantes|language=fr|date=18 February 2007|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20070220085635/http://fcna.fr/articles/20062007/MarseilleFcna180207.php|archive-date=20 February 2007|url-status=dead}} {{cite news|title=NANTES : VAINQUEUR TITULAIRE|url=http://www.football365.fr/nantes-vainqueur-titulaire-1452829.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018 |archiveurl=https://web.archive.org/web/20180915153416/http://www.football365.fr/tout-sourit-a-vainqueur-1179385.html|archive-date=15 September 2018|url-status=dead}}</ref> Vainqueur soon become involved in a number of matches following an absent of [[Alioum Saidou]], though he faced setback with injury.<ref>{{cite news|title=NANTES : PIERONI ET VAINQUEUR FORFAITS|url=http://www.football365.fr/nantes-pieroni-et-vainqueur-forfaits-1530503.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915142559/http://www.football365.fr/nantes-pieroni-et-vainqueur-forfaits-1530503.html|archive-date=15 September 2018|url-status=dead}} {{cite news|title=NANTES : SAÏDOU TOUCHÉ AUX CÔTES|url=http://www.football365.fr/nantes-saidou-touche-aux-cotes-1377213.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915131036/http://www.football365.fr/nantes-saidou-touche-aux-cotes-1377213.html|archive-date=15 September 2018|url-status=dead}} {{cite news|title=DÉCHÉANCE À LA NANTAISE|url=http://www.football365.fr/decheance-a-la-nantaise-1098175.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915131036/http://www.football365.fr/decheance-a-la-nantaise-1098175.html|archive-date=15 September 2018|url-status=dead}}</ref> However, the club were eventually relegated to [[Ligue 2]] at the end of the season after losing 1–0 against [[FC Girondins de Bordeaux|Bordeaux]] on 9 May 2007.<ref>{{cite web|url=http://www.fcna.fr/articles/20062007/BordeauxFcna090507.php|title=Nantes en Ligue 2 malgré la victoire (0-1)|website=FC Nantes|language=fr|date=9 May 2007|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20070512071757/http://www.fcna.fr/articles/20062007/BordeauxFcna090507.php|archive-date=12 May 2007|url-status=dead}}</ref> At the end of the 2006–07 season, Vainqueur went on to make ten appearances for FC Nantes. Shortly after, he signed his first professional contract with the [[Ligue 1]] club shortly.<ref name="Vainquerer Contract"/><ref name="Vainquerer Haiti"/><ref>{{cite news|title=NANTES : CONTRAT ELITE POUR VAINQUEUR|url=http://www.football365.fr/nantes-contrat-elite-pour-vainqueur-1212849.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915125952/http://www.football365.fr/nantes-contrat-elite-pour-vainqueur-1212849.html|archive-date=15 September 2018|url-status=dead}}</ref>

However, ahead of the 2007–08 season, Vainqueur was out for six months after rupturing his cruciate ligaments on his right knee while on duty for France U19.<ref name="Vainquerer Right Knee"/><ref name="Vainquerer Right Knee 2"/> By January, he returned to training after being on the sidelines.<ref>{{cite news|title=NANTES : RETOUR DE VAINQUEUR|url=http://www.football365.fr/nantes-retour-de-vainqueur-1668647.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018 |archiveurl=https://web.archive.org/web/20180915145305/http://www.football365.fr/nantes-retour-de-vainqueur-1668647.html|archive-date=15 September 2018|url-status=dead}}</ref> However, he suffered another injury with a broken cruciate ligament.<ref>{{cite news|title=NANTES : SÉANCE AVANCÉE|url=http://www.football365.fr/nantes-seance-avancee-1518801.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018 |archiveurl=https://web.archive.org/web/20180915143905/http://www.football365.fr/nantes-seance-avancee-1518801.html|archive-date=15 September 2018|url-status=dead}}</ref> On 10 March 2008, Vainqueur made his first appearance of the season, coming on as a substitute, in a 1–0 win over [[Grenoble Foot 38|Grenoble Foot]].<ref>{{cite news|title=NANTES : LE GROUPE FACE À GRENOBLE|url=http://www.football365.fr/nantes-le-groupe-face-a-grenoble-4-1733193.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018 |archiveurl=https://web.archive.org/web/20180915150558/http://www.football365.fr/nantes-le-groupe-face-a-grenoble-4-1733193.html|archive-date=15 September 2018|url-status=dead}} {{cite web|url=http://www.fcna.fr/articles/20072008/NantesGrenoble100308.php|title=Un pas de plus vers la Ligue 1 (1-0)|website=FC Nantes|language=fr|date=10 March 2008|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20080416210811/http://www.fcna.fr/articles/20072008/NantesGrenoble100308.php|archive-date=16 April 2008|url-status=dead}}</ref> He went on to make five appearances in the 2007–08 season, as FC Nantes were promoted back to Ligue 1 at the first attempt.<ref>{{cite web|url=http://www.fcna.fr/articles/20072008/NantesMontpellier250408.ph|title=Nantes retouve son rang!|website=FC Nantes|language=fr|date=25 April 2008|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20080622020932/http://www.fcna.fr/articles/20072008/AngersNantes210408.php|archive-date=22 June 2008|url-status=dead}}</ref>

Vainqueur had to wait until 20 September 2008 to make his first appearance of the 2008–09 season, coming on as a substitute, in a 2–0 win over [[Valenciennes FC|Valenciennes]].<ref>{{cite web|url=http://www.fcnantes.com/articles/article2809.php?num=355|title=FC Nantes 2-0 Valenciennes : Nantes lance sa saison|website=FC Nantes|language=fr|date=20 September 2008|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20080923043212/http://www.fcnantes.com/articles/article2809.php?num=355|archive-date=23 September 2008|url-status=dead}}</ref> However, he struggled for most of the season on the substitute bench, as well as, his own injury concerns.<ref>{{cite news|title=NANTES : KLASNIC OPÉRATIONNEL|url=http://www.football365.fr/nantes-klasnic-operationnel-1355581.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915125955/http://www.football365.fr/nantes-klasnic-operationnel-1355581.html|archive-date=15 September 2018|url-status=dead}} {{cite news|title=Nantes - Lyon : avec Abdoun et Toulalan|url=https://nantes.maville.com/sport/detail_-nantes-lyon-avec-abdoun-et-toulalan_37933-763596_actu.Htm|publisher=Nantes Maville|language=fr|date=5 December 2008|access-date=23 September 2018}}</ref> By the second half of the season, Vainqueur soon regained his first team place, in the defensive midfield position.<ref>{{cite news|title=NANTES : TALL ET MOULLEC INCERTAINS|url=http://www.football365.fr/nantes-tall-et-moullec-incertains-1558037.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915152504/http://www.football365.fr/nantes-tall-et-moullec-incertains-1558037.html|archive-date=15 September 2018|url-status=dead}} {{cite news|title=Oubliez le guide, s'il vous plaît!|url=https://nantes.maville.com/sport/detail_-oubliez-le-guide-s-il-vous-plait-_37933-882498_actu.Htm|publisher=Nantes Maville|language=fr|date=2 April 2009|access-date=23 September 2018}} {{cite news|title=Élie Baup cherche la formule magique|url=https://nantes.maville.com/sport/detail_-elie-baup-cherche-la-formule-magique_37933-900356_actu.Htm|publisher=Nantes Maville|language=fr|date=17 April 2009|access-date=23 September 2018}}</ref> He later faced further absence later in the 2008–09 season that saw FC Nantes were relegated back to Ligue 2 after finishing 19th on the table.<ref>{{cite news|title=NANTES : DEUX JOURS AU VERT|url=http://www.football365.fr/nantes-deux-jours-au-vert-1555553.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915152503/http://www.football365.fr/nantes-deux-jours-au-vert-1555553.html|archive-date=15 September 2018|url-status=dead}} {{cite news|title=COMMISSION DE DISCIPLINE : LES SANCTIONS|url=http://www.football365.fr/commission-de-discipline-les-sanctions-66-1418609.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915143938/http://www.football365.fr/commission-de-discipline-les-sanctions-66-1418609.html|archive-date=15 September 2018|url-status=dead}} {{cite web|url=http://www.fcnantes.com/articles/article2809.php?num=1721|title=II Faudrait un Miracle|website=FC Nantes|language=fr|date=23 May 2009|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20090527110841/http://www.fcnantes.com/articles/article2809.php?num=1721|archive-date=27 May 2009|url-status=dead}} {{cite web|url=http://www.fcnantes.com/articles/article2809.php?num=1757|title=FCN 2-1 AJA : Un dernier baroud d'honneur|website=FC Nantes|language=fr|date=30 May 2009|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20090603182100/http://www.fcnantes.com/articles/article2809.php?num=1757|archive-date=3 June 2009|url-status=dead}}</ref> At the end of the 2008–09 season, Vainqueur went on to make eighteen appearances in all competitions.

In the 2009–10 season, Vainqueur began to feature more in the first team and started in a number of matches.<ref>{{cite news|title=L'incroyable dégraissage du FC Nantes|url=http://www.footmercato.net/ligue2/l-incroyable-degraissage-du-fc-nantes_50031|publisher=Foot Mercato|language=fr|date=26 May 2010|access-date=23 September 2018}} {{cite news|title=Le FC Nantes veut jouer les récidiv... Istres|url=https://nantes.maville.com/sport/detail_-le-fc-nantes-veut-jouer-les-recidiv...-istres_37933-1041851_actu.Htm|publisher=Nantes Maville|language=fr|date=21 August 2009|access-date=23 September 2018}}</ref> However, he was sent–off for a second bookable offence, in a 5–0 win over [[FC Istres]] on 21 August 2009.<ref>{{cite news|title=Nantes marque des buts et les esprits|url=https://nantes.maville.com/sport/detail_-nantes-marque-des-buts-et-les-esprits_37933-1043441_actu.Htm|publisher=Nantes Maville|language=fr|date=22 August 2009|access-date=23 September 2018}} {{cite web|url=http://www.fcnantes.com/articles/article2809.php?num=2052|title=FC Nantes affirm eses ambitions!|website=FC Nantes|language=fr|date=21 August 2009|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20090826184700/http://www.fcnantes.com/articles/article2809.php?num=2052|archive-date=26 August 2009|url-status=dead}}</ref> After serving a two match suspension, Vainqueur returned to the first team on 18 September 2009, in a 1–1 draw against [[SC Bastia]].<ref>{{cite news|title=COMMISSION DE DISCIPLINE : LES SANCTIONS|url=http://www.football365.fr/commission-de-discipline-les-sanctions-134-1559585.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915145253/http://www.football365.fr/commission-de-discipline-les-sanctions-134-1559585.html|archive-date=15 September 2018|url-status=dead}} {{cite web|url=http://www.fcnantes.com/articles/article2809.php?num=2194|title=Un Point et quand meme des regret|website=FC Nantes|language=fr|date=18 September 2009|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20090922213923/http://www.fcnantes.com/articles/article2809.php?num=2194|archive-date=22 September 2009|url-status=dead}} {{cite news|title=Le FC Nantes laisse échapper deux points en Corse|url=https://nantes.maville.com/sport/detail_-le-fc-nantes-laisse-echapper-deux-points-en-corse_37933-1076290_actu.Htm|publisher=Nantes Maville|language=fr|date=19 September 2009|access-date=23 September 2018}}</ref> On 1 October 2009, he signed a contract with FC Nantes, keeping him until 2013.<ref>{{cite news|title=Nantes : William Vainqueur prolonge|url=https://www.foot-national.com/foot-nantes-william-vainqueur-prolonge-13184.html|publisher=Foot National|language=fr|date=1 October 2009|access-date=23 September 2018}}</ref> Three weeks later on 23 October 2009, Vainqueur scored his first goal for the club, in a 2–1 win over [[Dijon FCO]].<ref>{{cite web|url=http://www.fcnantes.com/articles/article2809.php?num=2375|title=La Bonne Operation en terre bourguignonne|website=FC Nantes|language=fr|date=23 October 2009|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20091026144642/http://www.fcnantes.com/articles/article2809.php?num=2375|archive-date=26 October 2009|url-status=dead}} {{cite news|title=Nantes revient avec la victoire d'un état d'espri|url=https://nantes.maville.com/sport/detail_-nantes-revient-avec-la-victoire-d-un-etat-d-esprit_37933-1129733_actu.Htm|publisher=Nantes Maville|language=fr|date=24 October 2009|access-date=23 September 2018}}</ref> However, he was out on four more occasions later in the 2009–10 season.<ref>{{cite news|title=Les Lorientais savent ce qu'il leur reste à faire|url=https://nantes.maville.com/sport/detail_-les-lorientais-savent-ce-qu-il-leur-reste-a-faire_11521-1201144_actu.Htm|publisher=Nantes Maville|language=fr|date=21 December 2009|access-date=23 September 2018}} {{cite news|title=Et les Canaris, ils volent quand ?|url=https://nantes.maville.com/sport/detail_-et-les-canaris-ils-volent-quand-_37933-1342275_actu.Htm|publisher=Nantes Maville|language=fr|date=23 April 2010|access-date=23 September 2018}} {{cite news|title=Une deuxième victoire d'affilée, un horizon dégagé|url=https://nantes.maville.com/sport/detail_-une-deuxieme-victoire-d-affilee-un-horizon-degage_37933-1323353_actu.Htm|publisher=Nantes Maville|language=fr|date=3 April 2010|access-date=23 September 2018}}</ref> Despite this, this did not affect Vainqueur's place in the first team, as he remained on the first team spotlight throughout the 2009–10 season.<ref>{{cite news|title=Deux cas de " melonite aiguë " chez les Canaris|url=https://nantes.maville.com/sport/detail_-deux-cas-de-melonite-aigue-chez-les-canaris_37933-1135041_actu.Htm|publisher=Nantes Maville|language=fr|date=29 October 2009|access-date=23 September 2018}} {{cite news|title=William Vainqueur, partir pour ne pas s'enliser|url=https://nantes.maville.com/sport/detail_-william-vainqueur-partir-pour-ne-pas-s-enliser_37933-1340427_actu.Htm|publisher=Nantes Maville|language=fr|date=21 April 2010|access-date=23 September 2018}}</ref> At the end of the 2009–10 season, Vainqueur went on to make twenty–nine appearances and scoring once in all competitions.

After missing the start of the 2010–11 season, due to injury, Vainqueur made his first appearance of the season, starting the whole game, in a 2–0 loss against [[Le Mans FC|Le Mans]] in the opening game of the season.<ref>{{cite web|url=http://www.fcnantes.com/articles/article2809.php?num=3557|title=FC Nantes 0-2 Le Mans FC : Faux départ nantais|website=FC Nantes|language=fr|date=9 August 2010|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20100827064052/http://www.fcnantes.com/articles/article2809.php?num=3557|archive-date=27 August 2010|url-status=dead}} {{cite news|title=NANTES : TIXIER ET LEE PAS QUALIFIÉS|url=http://www.football365.fr/nantes-tixier-et-lee-pas-qualifies-1433305.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915142609/http://www.football365.fr/nantes-tixier-et-lee-pas-qualifies-1433305.html|archive-date=15 September 2018|url-status=dead}} {{cite news|title=NANTES : A.CAPOUE ET VAINQUEUR OUT|url=http://www.football365.fr/nantes-a-capoue-et-vainqueur-out-1754385.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915150601/http://www.football365.fr/nantes-a-capoue-et-vainqueur-out-1754385.html|archive-date=15 September 2018|url-status=dead}}</ref> Shortly after, he suffered a thigh strain that saw him miss two matches.<ref>{{cite news|title=Face à Évian, merci de remettre une tournée|url=https://nantes.maville.com/sport/detail_-face-a-evian-merci-de-remettre-une-tournee_37933-1479008_actu.Htm|publisher=Nantes Maville|language=fr|date=17 August 2010|access-date=23 September 2018}}</ref> Vainqueur returned to the first team on 20 September 2010, where he started and played 58 minutes, in a 2–1 loss against [[Stade de Reims|Reims]].<ref>{{cite news|title=Nantes s'incline sur le terrain de la lanterne rouge|url=https://nantes.maville.com/sport/detail_-nantes-s-incline-sur-le-terrain-de-la-lanterne-rouge_37933-1518373_actu.Htm|publisher=Nantes Maville|language=fr|date=23 September 2010|access-date=23 September 2018}} {{cite web|url=http://www.fcnantes.com/articles/article2809.php?num=3759|title=Stade de Reims - FC Nantes : 2-1|website=FC Nantes|language=fr|date=20 September 2010|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20100925053546/http://www.fcnantes.com/articles/article2809.php?num=3759|archive-date=25 September 2010|url-status=dead}}</ref> In a match against [[Le Havre AC|Le Havre]] on 10 December 2010, he was involved in a goal that led to opposition player [[Loïc Nestor]] scoring an own goal, which was the only goal of the game.<ref>{{cite web|url=http://www.fcnantes.com/articles/article2809.php?num=4183|title=Le Havre AC - FC Nantes : 0-1 (0-1)|website=FC Nantes|language=fr|date=10 December 2010|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20110907092118/http://www.fcnantes.com/articles/article2809.php?num=4183|archive-date=7 September 2011|url-status=dead}}</ref> A month later on 29 January 2011, Vainqueur was sent-off for the in the 62nd minute for a professional foul, in a 3–0 loss against [[Thonon Évian F.C.|Évian Thonon Gaillard]].<ref>{{cite news|title=Le FC Nantes prend l'eau face à Evian|url=https://nantes.maville.com/sport/detail_-le-fc-nantes-prend-l-eau-face-a-evian-_37933-1673741_actu.Htm|publisher=Nantes Maville|language=fr|date=29 January 2011|access-date=23 September 2018}} {{cite web|url=http://www.fcnantes.com/articles/article2809.php?num=4356|title=Evian TG - FC Nantes : 3-0 (2-0)|website=FC Nantes|language=fr|date=29 January 2011|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20110907085912/http://www.fcnantes.com/articles/article2809.php?num=4356|archive-date=7 September 2011|url-status=dead}}</ref> Despite being on the sidelines over injuries and suspensions,<ref>{{cite news|title=Le FC Nantes au régime étalon-Nord|url=https://nantes.maville.com/sport/detail_-le-fc-nantes-au-regime-etalon-nord_37933-1678647_actu.Htm|publisher=Nantes Maville|language=fr|date=2 February 2011|access-date=23 September 2018}} {{cite news|title=Les Nantais comme des gagne-petit|url=https://nantes.maville.com/sport/detail_-les-nantais-comme-des-gagne-petit_37933-1758721_actu.Htm|publisher=Nantes Maville|language=fr|date=9 April 2011|access-date=23 September 2018}} {{cite news|title=Pas le moment de se défiler, c'est mardi grave|url=https://nantes.maville.com/sport/detail_-pas-le-moment-de-se-defiler-c-est-mardi-grave_37933-1792413_actu.Htm|publisher=Nantes Maville|language=fr|date=10 May 2011|access-date=23 September 2018}}</ref> he continued to remain in the first team for the remainder of the season.<ref>{{cite news|title=Le FC Nantes pêche Othon|url=https://nantes.maville.com/sport/detail_-le-fc-nantes-peche-othon_37933-1672301_actu.Htm|publisher=Nantes Maville|language=fr|date=28 January 2011|access-date=23 September 2018}} {{cite news|title=Même sur le banc, Ba reste foncièrement bon|url=https://nantes.maville.com/sport/detail_-meme-sur-le-banc-ba-reste-foncierement-bon_37933-1625541_actu.Htm|publisher=Nantes Maville|language=fr|date=16 December 2010|access-date=23 September 2018}} {{cite news|title=William Vainqueur remet de l'ordre dans son jeu|url=https://nantes.maville.com/sport/detail_-william-vainqueur-remet-de-l-ordre-dans-son-jeu_37933-1726396_actu.Htm|publisher=Nantes Maville|language=fr|date=14 March 2011|access-date=23 September 2018}}</ref> At the end of the season, he went on to make twenty–nine appearances in all competitions.

In the 2011–12 season, Vainqueur continued to feature in the first team for Nantes and appeared in every match by the end of August.<ref>{{cite news|title=À l'affiche en Avignon pour jouer la prolongation|url=https://nantes.maville.com/sport/detail_-a-l-affiche-en-Avignon-pour-jouer-la-prolongation_47-1905345_actu.Htm|publisher=Nantes Maville|language=fr|date=12 August 2011|access-date=23 September 2018}} {{cite news|title=Football - Les Canaris s'envolent enfin|url=https://nantes.maville.com/sport/detail_-Football-Les-Canaris-s-envolent-enfin_47-1937924_actu.Htm|publisher=Nantes Maville|language=fr|date=23 August 2011|access-date=23 September 2018}} {{cite news|title= FC Nantes : Vainqueur s'en va, Chauvin voit rouge|url=https://nantes.maville.com/sport/detail_-fc-nantes-vainqueur-s-en-va-chauvin-voit-rouge_37933-1972547_actu.Htm|publisher=Nantes Maville|language=fr|date=29 August 2011|access-date=23 September 2018}}</ref>

On 30 August 2011, Vainqueur was transferred to [[Belgian First Division A|Belgian Pro League]] side [[Standard Liège]], signing a five-year contract with the Belgian club.<ref>{{cite web|title=William Vainqueur|url=http://standard.sudpresse.be/toutes-les-news/lire.htm?lng=fr&action=read&id=1979|publisher=Standard Liège|access-date=4 October 2011|language=fr|date=30 August 2011|archive-url=https://web.archive.org/web/20120330111233/http://standard.sudpresse.be/toutes-les-news/lire.htm?lng=fr&action=read&id=1979|archive-date=30 March 2012|url-status=dead}}</ref> The transfer move reportedly cost 1.7 million euros.<ref>{{cite news|title=Football - Nantes: Vainqueur file au Standard|url=https://nantes.maville.com/sport/detail_-Football-Nantes-Vainqueur-file-au-Standard_39904-1973554_actu.Htm|publisher=Nantes Maville|language=fr|date=30 August 2011|access-date=23 September 2018}}</ref> He was previously linked a move to clubs, such as, [[Olympiacos F.C.|Olympiacos]], [[AS Nancy]] and [[FC Lorient]] before he joined Standard Liège.<ref>{{cite news|title=OLYMPIAKOS : VAINQUEUR SUPERVISÉ|url=http://www.mercato365.com/olympiakos-vainqueur-supervise-1239149.html|publisher=Mercato 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180916144603/http://www.mercato365.com/olympiakos-vainqueur-supervise-1239149.html|archive-date=16 September 2018|url-status=dead}} {{cite news|title=NANTES : NANCY LORGNE VAINQUEUR|url=http://www.mercato365.com/nantes-nancy-lorgne-vainqueur-1809873.html|publisher=Mercato 365|language=fr|date=27 August 2011|access-date=23 September 2018 |archiveurl=https://web.archive.org/web/20180916144935/http://www.mercato365.com/nantes-nancy-lorgne-vainqueur-1809873.html|archive-date=16 September 2018|url-status=dead}} {{cite news|title=Nantes : Lille piste Vainqueur|url=http://www.mercato365.com/nantes-lille-piste-vainqueur-1202339.html|publisher=Mercato 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180916144930/http://www.mercato365.com/nantes-lille-piste-vainqueur-1202339.html|archive-date=16 September 2018|url-status=dead}}</ref>

After starting out on the substitute bench, Vainqueur made his Standard Liège debut on 15 September 2011, starting the whole game, in a 0–0 against [[Hannover 96]] in the UEFA Europa League Group Stage.<ref>{{cite news|title=Standard Liege zonder vreugde tweede|url=https://www.nieuwsblad.be/cnt/dmf20110910_115|publisher=Nieuwsblad|language=nl|date=10 September 2011|access-date=23 September 2018}} {{cite web|url=http://www.hannover96.de/CDA/profis/europa-1112/gruppenphase/luettich/spielbericht.html|title=Torloser Auftakt in Gruppenphase|publisher=Hannover 96|language=de|date=15 September 2011|access-date=23 September 2018|archive-url=https://web.archive.org/web/20111211153546/http://www.hannover96.de/CDA/profis/europa-1112/gruppenphase/luettich/spielbericht.html|archive-date=11 December 2011|url-status=dead}}</ref> Three days later, on 17 September 2011, he made his league debut for the club, starting the whole game, in a 3–0 loss against [[K.R.C. Genk|Genk]].<ref>{{cite news|title=Genk zet mak Standard Liege gemakkelijk opzij|url=http://www.standaard.be/cnt/dmf20110918_076|publisher=De Standaard|language=nl|date=18 September 2011|access-date=23 September 2018}}</ref> Since joining Standard Liège, he quickly established himself in the starting eleven, playing in the defensive–midfield position.<ref>{{cite news|title='Een terugkeer van Nong? Waarom niet!'|url=https://www.nieuwsblad.be/cnt/p03ipqki|publisher=Nieuwsblad|language=nl|date=25 November 2011|access-date=23 September 2018}} {{cite news|title=Yoni Buyens knipt lange manen na 25ste match bij Standard|url=https://www.nieuwsblad.be/cnt/i73jsinp|publisher=Nieuwsblad|language=nl|date=21 December 2011|access-date=23 September 2018}}</ref> In the second–leg of the [[2011–12 Belgian Cup#Quarterfinals|quarter–finals of Belgian Cup]] against [[Lierse S.K. (1906)|Lierse]], Vainqueur scored his first goal for the club, in a 4–2 loss, as Standard Liège were unable to overturn the deficit, losing 5–4 on aggregate.<ref>{{cite news|title=Lierse kegelt Standard na verlengingen uit de beker|url=http://www.standaard.be/cnt/dmf20120118_234|publisher=De Standaard|language=nl|date=18 January 2012|access-date=23 September 2018}}</ref> However, he was sent–off for a second bookable offence, in a 2–0 win over Lierse on 4 February 2012, resulting a one–man ban.<ref>{{cite news|title=Boosdoener Grncarov vier matchen geschorst, Felipe twee|url=https://www.nieuwsblad.be/cnt/dmf20120207_161|publisher=Nieuwsblad|language=nl|date=7 February 2012|access-date=23 September 2018}}</ref> His performance saw Vainqueur being named Nieuwsblad's Team of the Season in March 2012.<ref>{{cite news|title=De Ploeg van het Seizoen volgens de naakte cijfers|url=https://www.nieuwsblad.be/cnt/glm3nrqu2|publisher=Nieuwsblad|language=nl|date=23 March 2012|access-date=23 September 2018}}</ref> Despite missing several matches during the 2011–12 season,<ref>{{cite news|title=Standard vecht terug tegen Lokeren|url=https://www.nieuwsblad.be/cnt/dmf20111210_091|publisher=Nieuwsblad|language=nl|date=10 December 2011|access-date=23 September 2018}} {{cite news|title=Standard met nooddefensie in Kortrijk|url=https://www.nieuwsblad.be/cnt/873k274p|publisher=Nieuwsblad|language=nl|date=26 December 2011|access-date=23 September 2018}}</ref> he finished his first season at Standard Liège, making thirty–five appearances and scoring once in all competitions.

In the 2012–13 season, Vainqueur continued to remain in the first team, playing out in the defensive midfield position at the start of the season.<ref>{{cite news|title=William Vainqueur: 'Ik regel het verkeer en loop gaten dicht'|url=https://www.nieuwsblad.be/cnt/dmf20120827_00273168|publisher=Nieuwbslad|language=nl|date=27 August 2012|access-date=23 September 2018}} {{cite news|title=ANALYSE. Standard mist kwaliteit, Ron Jans treft geen schuld|url=https://www.nieuwsblad.be/cnt/dmf20121001_00318474|publisher=Nieuwsblad|language=nl|date=2 October 2012|access-date=23 September 2018}} {{cite news|title='Batshuayi heeft zijn les geleerd'|url=https://www.nieuwsblad.be/cnt/dmf20130401_00525763|publisher=Nieuwsblad|language=nl|date=1 April 2013|access-date=23 September 2018}}</ref> On 4 November 2012, he scored his first goal of the season, in a 2–0 win over [[Oud-Heverlee Leuven|OH Leuven]].<ref>{{cite news|title=Vainqueur matchwinnaar voor Rouches|url=https://www.nieuwsblad.be/cnt/dmf20121104_00357671|publisher=Nieuwsblad|language=nl|date=4 November 2012|access-date=23 September 2018}}</ref> His performance attracted interest from [[Premier League]] side [[Fulham F.C.|Fulham]], who wanted to sign him.<ref>{{cite news|title=Fulham wil Vainqueur naar Londen halen|url=https://www.nieuwsblad.be/cnt/dmf20121107_117|publisher=Nieuwsblad|language=nl|date=7 November 2012|access-date=23 September 2018}}</ref> Despite the transfer speculation, Vainqueur scored two goals in two matches on 2 December 2012 and 7 December 2012 against [[Waasland-Beveren]] and [[R. Charleroi S.C.|Charleroi]].<ref>{{cite news|title=Standard na zege op Freethiel opnieuw in top-6|url=https://www.nieuwsblad.be/cnt/dmf20121202_075|publisher=Nieuwsblad|language=nl|date=2 December 2012|access-date=23 September 2018}} {{cite news|title=Hulpeloos Charleroi vernederd in brandend Sclessin|url=http://www.standaard.be/cnt/dmf20121207_117|publisher=De Standaard|language=nl|date=7 December 2012|access-date=23 September 2018}}</ref> In a 0–0 draw against [[K.A.A. Gent|Gent]], he was sent–off for a second bookable offence, resulting a one match ban.<ref>{{cite news|title=Felbevochten AA Gent-Standard eindigt zonder doelpunten|url=https://www.nieuwsblad.be/cnt/dmf20130119_037|publisher=Nieuwsblad|language=nl|date=19 January 2013|access-date=23 September 2018}} {{cite news|title=Laurent Ciman niet ontevreden met punt|url=https://www.nieuwsblad.be/cnt/dmf20130121_00441040|publisher=Nieuwsblad|language=nl|date=21 January 2013|access-date=23 September 2018}}</ref> On 12 April 2013, Vainqueur scored his fourth goal of the season, in a 4–3 win over [[S.V. Zulte Waregem|Zulte Waregem]].<ref>{{cite news|title=Zulte Waregem opnieuw geen leider door twee buitenspelgoals|url=https://www.nieuwsblad.be/cnt/dmf20130412_078|publisher=Nieuwsblad|language=nl|date=12 April 2013|access-date=23 September 2018}}</ref> After the match, his goal against Zulte Waregem was voted number for the Goal of the Week by newspaper Nieuwsblad following a vote.<ref>{{cite news|title=Dit is het 'Doelpunt van de Week'|url=https://www.nieuwsblad.be/cnt/dmf20130419_00546916|publisher=Nieuwsblad|language=nl|date=19 April 2013|access-date=23 September 2018}}</ref> Towards the end of the 2012–13 season, he was given a captaincy, including a 7–0 win over [[K.A.A. Gent|Gent]] on 26 May 2013 to help the club qualify for the [[2012–13 Belgian Pro League#Testmatches Europa League|Europa League]] next season.<ref>{{cite news|title=Rednic: 'We praten nog niet over titel'|url=http://www.standaard.be/cnt/dmf20130428_035|publisher=De Standaard|language=nl|date=28 April 2013|access-date=23 September 2018}} {{cite news|title=Genk en Standard houden elkaar in evenwicht|url=http://www.standaard.be/cnt/dmf20130516_00585975|publisher=De Standaard|language=nl|date=16 May 2013|access-date=23 September 2018}} {{cite news|title=Standard vernedert AA Gent met 7-0|url=http://sporza.be/cm/sporza/matchcenter/mc_voetbal/2.22186/MG_barrage_PO_I_PO_II_terugmatch/1.1639923|publisher=Sporza|language=nl|date=26 May 2013|access-date=23 September 2016|archive-date=18 September 2016|archive-url=https://web.archive.org/web/20160918103503/http://sporza.be/cm/sporza/matchcenter/mc_voetbal/2.22186/MG_barrage_PO_I_PO_II_terugmatch/1.1639923|url-status=dead}}</ref> Having played down claims that Standard Liege would not win the league (which Vainqueur was correct), the club went on to finish fourth place.<ref>{{cite news|title='Niet klaar voor titel'|url=https://www.nieuwsblad.be/cnt/dmf20130506_00570173|publisher=Nieuwsblad|language=nl|date=6 May 2013|access-date=23 September 2018}}</ref> He was also nominated for the player of the Year in Belgium but lost out to [[Club Brugge KV|Club Brugge]]'s [[Carlos Bacca]].<ref>{{cite news|title=Wie wordt Profvoetballer van het Jaar?|url=https://www.nieuwsblad.be/cnt/dmf20130510_054|publisher=Nieuwsblad|language=nl|date=10 May 2013|access-date=23 September 2018}}</ref> Despite being sidelined during the 2012–13 season,<ref>{{cite news|title=Blessure voor Vainqueur|url=https://www.nieuwsblad.be/cnt/dmf20121118_00373314|publisher=Nieuwsblad|language=nl|date=18 November 2012|access-date=23 September 2018}} {{cite news|title=Standard test tactisch plannetje tegen STVV|url=https://www.nieuwsblad.be/cnt/dmf20130219_00476277|publisher=Nieuwsblad|language=nl|date=19 February 2013|access-date=23 September 2018}} {{cite news|title=Rednic: 'Genk is meest complete ploeg van België'|url=https://www.nieuwsblad.be/cnt/dmf20130222_00480653|publisher=Nieuwsblad|language=nl|date=22 February 2013|access-date=23 September 2018}}</ref> Vainqueur went on to make thirty–nine appearances and scoring four times in all competitions.

Ahead of the 2013–14 season, Vainqueur spoken out that he wanted to leave Standard Liège, citing delays of contract negotiations.<ref>{{cite news|title=Vainqueur: 'Ik praat niet meer met Standard'|url=https://www.nieuwsblad.be/cnt/dmf20130413_00539376|publisher=Nieuwsblad|language=nl|date=13 April 2013|access-date=23 September 2018}}</ref> This led interests from foreign clubs, including rivals, [[R.S.C. Anderlecht|Anderlecht]].<ref>{{cite news|title=Buitenlandse topclubs lonken naar William Vainqueur|url=https://www.nieuwsblad.be/cnt/dmf20130510_00576112|publisher=Nieuwsblad|language=nl|date=10 May 2013|access-date=23 September 2018}} {{cite news|title=Roland Duchâtelet: 'Mpoku en Vainqueur zeker niet naar Anderlecht'|url=https://www.nieuwsblad.be/cnt/dmf20130527_063|publisher=Nieuwsblad|language=nl|date=27 May 2013|access-date=23 September 2018}}</ref> Vainqueur was considering having his contract with Standard Liège terminated by using a law of 78.<ref>{{cite news|title='Vainqueur verbreekt contract bij Standard'|url=https://www.nieuwsblad.be/cnt/dmf20130629_00641315|publisher=Nieuwsblad|language=nl|date=29 June 2013|access-date=23 September 2018}}</ref> In an unexpected turn of an event, he made a U-turn by signing a new contract, keeping him until 2016.<ref>{{cite news|title= 'William Vainqueur blijft dan toch bij Standard'|url=https://www.nieuwsblad.be/cnt/dmf20130701_051|publisher=Nieuwsblad|language=nl|date=1 July 2013|access-date=23 September 2018}} {{cite news|title=Vainqueur keert zijn kar en tekent nieuw contract bij Standard tot juni 2017|url=https://www.nieuwsblad.be/cnt/dmf20130702_00644237|publisher=Nieuwsblad|language=nl|date=2 July 2013|access-date=23 September 2018}}</ref> Vainqueur made his first appearance of the season, where he started and played 73 minutes, in a 3–1 win over [[Knattspyrnufélag Reykjavíkur|KR Reykjavík]] in the first leg of UEFA Europa League Second Round.<ref>{{cite news|title=Standard zet scheve situatie recht tegen IJslandse dwerg|url=https://www.nieuwsblad.be/cnt/dmf20130719_001|publisher=Nieuwsblad|language=nl|date=19 July 2013|access-date=23 September 2018}}</ref> During the match, however, he suffered a thigh injury and was sidelined for several weeks.<ref>{{cite news|title=Standard start competitie zonder Vainqueur|url=https://www.nieuwsblad.be/cnt/dmf20130719_00664268|publisher=Nieuwsblad|language=nl|date=19 July 2013|access-date=23 September 2018}} {{cite news|title=Standard lange tijd zonder Ono, ook Vainqueur is out|url=https://www.nieuwsblad.be/cnt/dmf20130723_00668423|publisher=Nieuwsblad|language=nl|date=23 July 2013|access-date=23 September 2018}}</ref> On 1 September 2013, Vainqueur returned to the first team from injury, in a 2–0 win over [[K.V. Kortrijk]].<ref>{{cite news|title=Sterkhouder Standard opnieuw wedstrijdfit|url=https://www.nieuwsblad.be/cnt/dmf20130901_00717448|publisher=Nieuwsblad|language=nl|date=1 September 2013|access-date=23 September 2018}}</ref> After returning to the first team, he established himself in the starting eleven for the side.<ref>{{cite news|title=William Vainqueur wil plaats heroveren|url=https://www.nieuwsblad.be/cnt/dmf20130913_00740199|publisher=Nieuwsblad|language=nl|date=13 September 2013|access-date=23 September 2018}}</ref> Vainqueur was then sent–off on 27 October 2013, in which he was involved an incident with [[Luka Milivojević]], in a 1–1 draw against Anderlecht.<ref>{{cite news|title=RECORD: 10 rode kaarten op een speeldag|url=https://www.nieuwsblad.be/cnt/dmf20131027_00812542|publisher=Nieuwsblad|language=nl|date=27 October 2013|access-date=23 September 2018}} {{cite news|title=Anderlecht baalt: geen winst tegen negen Rouches én pijnlijke blessure Gillet|url=https://www.nieuwsblad.be/cnt/dmf20131027_00811483|publisher=Nieuwsblad|language=nl|date=27 October 2013|access-date=23 September 2018}}</ref> After the match, the Disputes Committee of the KBVB decided not to take further action against Vainqueur and allowed him to play in the next match.<ref>{{cite news|title=Luzon weigert schorsingsvoorstel, Vainqueur gaat vrijuit|url=https://www.nieuwsblad.be/cnt/dmf20131028_048|publisher=Nieuwsblad|language=nl|date=28 October 2013|access-date=23 September 2018}}</ref> After being suspended for one match, he scored on his return on 1 December 2013, in a 5–0 win over Lierse.<ref>{{cite news|title=Standard herleeft op het Lisp|url=https://www.nieuwsblad.be/cnt/dmf20131201_00865344|publisher=Nieuwsblad|language=nl|date=1 December 2013|access-date=23 September 2018}}</ref> However, near the end of a league game against Lierse, Vainqueur received a red card when he accidentally kicked an opponent in the face.<ref>{{cite news|url=http://blog.foxsoccer.com/post/68817285168/standard-liege-player-sent-off-for-donkey-kick-to-the|title=Standard Liege player sent off for donkey kick to the face|first=Thomas|last=Hautmann|website=foxsoccer.com|date=2 December 2013|access-date=1 September 2014|archive-date=4 September 2014|archive-url=https://web.archive.org/web/20140904032508/http://blog.foxsoccer.com/post/68817285168/standard-liege-player-sent-off-for-donkey-kick-to-the|url-status=dead}}</ref> During a 2–0 win over [[K.V. Oostende|Oostende]] on 18 January 2014, Vainqueur made a tough tackle on [[Sébastien Siani]] but wasn't booked; after the match, the Disputes Committee of the KBVB, again, decided not charge any actions against him despite proof claims on television.<ref>{{cite news|title=Vainqueur gaat vrijuit, ondanks televisiebeelden|url=https://www.nieuwsblad.be/cnt/dmf20140121_0094024|publisher=Nieuwsblad|language=nl|date=21 January 2014|access-date=23 September 2018}} {{cite news|title=William Vainqueur: 'Niet perfect, maar wel efficiënt in Lokeren'|url=https://www.nieuwsblad.be/cnt/dmf20140126_00947874|publisher=Nieuwsblad|language=nl|date=26 January 2014|access-date=23 September 2018}}</ref> After finishing second place in the league, he hinted about leaving the club in the summer of 2014.<ref>{{cite news|title=Standard-coach Luzon vervloekt play-offsysteem na mislopen titel|url=https://www.nieuwsblad.be/cnt/dmf20140518_01110211|publisher=Nieuwsblad|language=nl|date=18 May 2014|access-date=23 September 2018}}</ref> Despite being suspended on two occasions later in the 2013–14 season,<ref>{{cite news|title=Jean Janssens: 'Peeters bracht werklust'|url=https://www.nieuwsblad.be/cnt/dmf20140311_01019949|publisher=Nieuwsblad|language=nl|date=11 March 2014|access-date=23 September 2018}} {{cite news|title=Standard mist Vainqueur tegen Club Brugge en Lokeren|url=https://www.nieuwsblad.be/cnt/dmf20140502_01090142|publisher=Nieuwsblad|language=nl|date=2 May 2014|access-date=23 September 2018}}</ref> Vainqueur continuously remained in the starting eleven for the side and went on to make thirty–six appearances and scoring once in all competitions.<ref>{{cite news|title=Onze analist Scifo: 'Vainqueur is de beste middenvelder van België'|url=https://www.nieuwsblad.be/cnt/dmf20140321_014|publisher=Nieuwsblad|language=nl|date=21 March 2014|access-date=23 September 2018}} {{cite news|title=Besnik Hasi: 'Wij spelen niet voor een punt'|url=https://www.nieuwsblad.be/cnt/dmf20140329_01046740|publisher=Nieuwsblad|language=nl|date=29 March 2014|access-date=23 September 2018}}</ref> For his performance at the end of the 2013–14 season, he was awarded UGH Ecarlate trophy, a Player of the Year award voted for by Standard Liège fans.<ref name="Vainqueur Awards">{{cite web|url=https://www.asroma.com/en/news/2015/08/10-things-you-need-to-know-about-vainqueur|title=10 THINGS YOU NEED TO KNOW ABOUT VAINQUEUR|publisher=A.S. Roma|date=31 August 2015|access-date=23 September 2018}}</ref>

On 27 June 2014, [[FC Dynamo Moscow|Dynamo Moscow]] announced signing Vainqueur on a long-term deal.<ref>{{cite web|publisher=[[FC Dynamo Moscow]]|url=http://fcdynamo.ru/news/events/?id_4=5669|script-title=ru:Ванкер - в "Динамо"!|date=27 June 2014|language=ru|archive-url=https://web.archive.org/web/20140703102255/http://fcdynamo.ru/news/events/?id_4=5669|archive-date=3 July 2014|url-status=dead}}</ref> Upon joining the club, he revealed that he consulted his former teammate [[Mehdi Carcela]], who moved to Russia to play for [[FC Anzhi Makhachkala|Anzhi Makhachkala]] three years ago before returning to Standard Liège, about moving to Russia and insisted of not being afraid facing competitions at Dynamo Moscow.<ref>{{cite news |script-title=ru:Вильям Венкер: "При переходе в "Динамо" консультировался с Карсела-Гонсалесом"|url=https://www.sport-express.ru/football/rfpl/news/702491/|publisher=Sport Express|language=ru|date=27 June 2014|access-date=23 September 2018}} {{cite news |script-title=ru:Вильям Венкер: "Не боюсь конкуренции в "Динамо"|url=https://www.sport-express.ru/football/rfpl/news/705539/|publisher=Sport Express|language=ru|date=6 July 2014|access-date=23 September 2018}}</ref>

[[File:Dinamo-PSV (2).jpg|thumb|left|200px|Vainqueur playing for Dynamo Moscow during a match against [[PSV Eindhoven]] on 2 October 2014.]]

Vainqueur made his Dynamo Moscow debut, starting the whole game, in a 1–1 draw against [[Hapoel Ironi Kiryat Shmona F.C.|Hapoel Ironi Kiryat Shmona]] in the first leg of the [[2014–15 UEFA Europa League|UEFA Europa League]] third round.<ref>{{cite news |script-title=ru:Вильям Венкер: «Доволен игрой, которую показал в дебютном матче. Но я могу и лучше»|url=https://www.sports.ru/football/1022543287.htm|publisher=Sports.ru|language=ru|date=31 July 2014|access-date=23 September 2018}}</ref> In the return leg, he started the whole game to help the club beat the opposition team 2–1 at away to advance to the next round.<ref>{{cite news |script-title=ru:Кипр принёс «Динамо» удачу|url=https://www.championat.com/football/article-3242113-khapojel---dinamo-obzor-matcha---12.html|publisher=Championat.com|language=ru|date=7 August 2014|access-date=23 September 2018}}</ref> Vainqueur made his league debut for Dynamo Moscow, where he played 63 minutes before being substituted, in a 7–3 win over [[FC Rostov]] in the opening game of the season.<ref>{{cite web|url=http://fcdynamo.ru/news/events/?id_4=5769 |script-title=ru:«Динамо» (мол) vs «Ростов» (мол) – 3:2 (1:1)|publisher=FC Dynamo Moscow|language=ru|date=4 August 2014|access-date=21 September 2018|archive-url=https://web.archive.org/web/20180921201706/http://fcdynamo.ru/news/events/?id_4=5769|archive-date=21 September 2018|url-status=live}}</ref> Vainqueur played in both leg of the UEFA Europa League play–offs round against [[AC Omonia]] but he was sent–off in the second leg for second bookable offence, as the club went through by beating 4–3 on aggregate.<ref>{{cite news |script-title=ru:«Омония» не робкого десятка|url=https://www.championat.com/football/article-3242897-dinamo-i-omonija-sygrali-vnichju-v-lige-evropy.html|publisher=Championat.com|language=ru|date=21 August 2014|access-date=23 September 2018}} {{cite web|url=https://www.fcdynamo.ru/news/events/?id_4=5823 |script-title=ru:«Омония» vs «Динамо» - 1:2 (1:1)|publisher=FC Dynamo Moscow|language=ru|date=28 August 2014|access-date=23 September 2018|archive-url=https://web.archive.org/web/20150419040012/http://fcdynamo.ru/news/events/?id_4=5823|archive-date=19 April 2015|url-status=live}}</ref> Throughout the UEFA Europa League Group Stage, Vainqueur was featured five out of the six matches in the group stage to help Dynamo Moscow win all the matches to reach the knockout stage.<ref>{{cite news |script-title=ru:Вильям Венкер: «Это историческое событие для «Динамо», которое давно не участвовало в решающих стадиях еврокубков»|url=https://www.sports.ru/football/1024797104.html|publisher=Sports.ru|language=ru|date=7 November 2014|access-date=23 September 2018}} {{cite news |script-title=ru:Вильям Венкер: «15 очков в Лиге Европы не стали неожиданностью»|url=https://www.sports.ru/football/1025316205.html|publisher=Sports.ru|language=ru|date=28 November 2014|access-date=23 September 2018}}</ref> On 4 April 2015, he scored his first goal for the club, in a 2–2 draw against [[FC Lokomotiv Moscow|Lokomotiv Moscow]].<ref>{{cite news |script-title=ru:«Динамо» и «Локомотив» сыграли вничью в рамках 21-го тура РФПЛ|url=https://www.sovsport.ru/football/news/793196-dinamo-i-lokomotiv-sygrali-vnichju-v-ramkah-21-go-tura-rfpl|publisher=Soviet Sports|language=ru|date=4 April 2015|access-date=23 September 2018}}</ref> A month later on 25 May 2015, Vainqueur scored his second goal of the season, in a 2–2 draw against [[FC Arsenal Tula|Arsenal Tula]].<ref>{{cite news |script-title=ru:«Арсенал» не смог удержать победу над «Динамо»|url=https://www.sovsport.ru/football/news/808561-arsenal-ne-smog-uderzhat-pobedu-nad-dinamo|publisher=Soviet Sports|language=ru|date=25 May 2015|access-date=23 September 2018}}</ref> Throughout the 2014–15 season, he was a first team regular, playing in the defensive–midfield position and finished his first season at Dynamo Moscow, making forty–one appearances and scoring two times in all competitions.<ref>{{cite news |script-title=ru:Что происходит с Гранатом?|url=https://www.sovsport.ru/football/articles/756380-chto-proishodit-s-granatom|publisher=Soviet Sports|language=ru|date=30 October 2014|access-date=23 September 2018}} {{cite news |script-title=ru:Активный офсайд «Динамо». Как «Спартак» победил в дерби|url=https://www.sovsport.ru/football/articles/734627-aktivnyj-ofsajd-dinamo-kak-spartak-pobedil-v-derbi|publisher=Soviet Sports|language=ru|date=11 August 2014|access-date=23 September 2018}} {{cite news |script-title=ru:«Лимит «6+5»: Тяжелее всего придется «Зениту», а легче – «Динамо» и «Спартаку»|url=https://www.sovsport.ru/football/articles/776582-limit-6-5-tjazhelee-vsego-pridetsja-zenitu-a-legche-dinamo-i-spartaku|publisher=Soviet Sports|language=ru|date=5 February 2015|access-date=23 September 2018}}</ref> However, during the season, Vainqueur received criticism from Manager [[Stanislav Cherchesov]] for committing several fouls and received a warning as a result.<ref>{{cite news |script-title=ru:Станислав Черчесов: Надо пройти как можно дальше в Лиге Европы. А в чемпионате выступить так, чтобы попасть в Лигу чемпионов|url=https://www.sovsport.ru/football/news/765855-stanislav-cherchesov-nado-projti-kak-mozhno-dalshe-v-lige-evropy-a-v-chempionate-vystupit-tak-chtoby-popast-v-ligu-chempionov|publisher=Soviet Sports|language=ru|date=12 December 2014|access-date=23 September 2018}} {{cite news |script-title=ru:Начальная школа|url=https://www.sovsport.ru/football/articles/780916-nachalnaja-shkola|publisher=Soviet Sports|language=ru|date=24 February 2015|access-date=23 September 2018}}</ref>

[[File:Dinamo-Ufa (2).jpg|thumb|right|200px|Vainqueuer playing for the side in a league match against [[FC Ufa]] on 9 March 2015.]]

However, in the 2015–16 season, Vainqueur made his only appearance for Dynamo Moscow, coming on as a substitute, against [[FC Mordovia Saransk|Mordovia Saransk]] on 25 July 2015.<ref>{{cite news |script-title=ru:Андрей Кобелев: Ванкер вышел на замену — и начал стоять. Как будто обижен на весь свет|url=https://www.sovsport.ru/football/news/826478-andrej-kobelev-vanker-vyshel-na-zamenu-i-nachal-stojat-kak-budto-obizhen-na-ves-svet|publisher=Sov Sports|language=ru|date=26 July 2015|access-date=23 September 2018}}</ref> This was partly because he spent the number of matches on the substitute bench.<ref>{{cite news |script-title=ru:Андрей Кобелев: Денисов не сказал своего последнего слова в «Динамо» и в сборной|url=https://www.sovsport.ru/football/articles/823437-kto-bolshe-postradaet-pri-novom-limite-na-legionerov-6-5|publisher=Soviet Sports|language=ru|date=19 July 2015|access-date=23 September 2018}} {{cite news |script-title=ru:Андрей Кобелев: Ванкер решает свои проблемы с паспортом|url=https://www.sovsport.ru/football/news/832047-andrej-kobelev-vanker-reshaet-svoi-problemy-s-pasportom|publisher=Soviet Sports|language=ru|date=14 August 2015|access-date=23 September 2018}}</ref> Towards the end of August, his future at the club was in doubt following their expulsion from playing European Football this season.<ref>{{cite news |script-title=ru:Вильям Ванкер: Ищу команду, соответствующую моим спортивным амбициям|url=https://www.sovsport.ru/football/news/835163-viljam-vanker-ischu-komandu-sootvetstvujuschuju-moim-sportivnym-ambicijam|publisher=Soviet Sports|language=ru|date=25 August 2015|access-date=23 September 2018}}</ref> It came after when Dynamo Moscow was keen on selling him.<ref>{{cite news |script-title=ru:«Динамо» ведет переговоры о трансфере Ванкера|url=https://www.sovsport.ru/football/news/833695-dinamo-vedet-peregovory-o-transfere-vankera|publisher=Sov Sports|language=ru|date=20 August 2015|access-date=23 September 2018}}</ref>

===A.S. Roma=== On 31 August 2015, Vainqueur moved to [[Serie A]] side [[A.S. Roma|Roma]] for an undisclosed fee.<ref>{{cite web|publisher=[[FC Dynamo Moscow]]|url=http://fcdynamo.ru/news/events/?id_4=11765|script-title=ru:Вильям Ванкёр перешел в «Рому»|date=31 August 2015|language=ru|archive-url=https://web.archive.org/web/20150928221104/http://fcdynamo.ru/news/events/?id_4=11765|archive-date=28 September 2015|url-status=live}}</ref><ref name="Vainquerer Haiti"/> Upon joining the club, he became the tenth French player to join Roma and was given a number twenty–one shirt.<ref>{{cite news|title=Roma, Vainqueur ha scelto la maglia numero 21|url=https://www.tuttomercatoweb.com/altre-notizie/roma-vainqueur-ha-scelto-la-maglia-numero-21-723184|publisher=Tutto Mercato Web|language=it|date=31 August 2015|access-date=23 September 2018}} {{cite web|url=http://www.asroma.it/it/notizie/las_roma_annuncia_lacquisto_di_william_vainqueur/|title=L'AS ROMA ANNUNCIA L'ACQUISTO DI WILLIAM VAINQUEUR|publisher=A.S. Roma|language=fr|date=31 August 2015|access-date=23 September 2018|archive-url=https://web.archive.org/web/20150904093900/http://www.asroma.it/it/notizie/las_roma_annuncia_lacquisto_di_william_vainqueur/|archive-date=4 September 2015|url-status=dead}}</ref><ref name="Vainqueur Awards"/>

However, Vainqueur started off his Roma career on the substitute bench in a number of matches, due to strong competitions in the midfield positions, as well as, [[Rudi Garcia]]'s formation.<ref>{{cite news|title=Roma, Garcia pensa ancora al 4-2-3-1 per la sfida al Barcellona|url=https://www.tuttomercatoweb.com/serie-a/roma-garcia-pensa-ancora-al-4-2-3-1-per-la-sfida-al-barcellona-728807|publisher=Tutto Mercato Web|language=it|date=26 September 2015|access-date=23 September 2018}} {{cite news|title=Roma, avanza l'ipotesi 4-4-2: fuori Vainqueur dentro Maicon|url=https://www.tuttomercatoweb.com/altre-notizie/roma-avanza-l-ipotesi-4-4-2-fuori-vainqueur-dentro-maicon-747040|publisher=Tutto Mercato Web|language=it|date=28 October 2015|access-date=23 September 2018}} {{cite news|title=Roma, tegola De Rossi: fuori un mese, salta il Real|url=https://www.repubblica.it/sport/calcio/serie-a/roma/2016/02/19/news/roma_tegola_de_rossi_fuori_un_mese_salta_il_real-133799796/|publisher=La Repubblica|language=it|date=19 February 2016|access-date=23 September 2018}}</ref> He made his debut for the club, coming on as a substitute for injured [[Seydou Keita]] in the 21st minute and went on to play the whole game, in a 5–1 win over [[Carpi F.C. 1909|Carpi]] on 26 September 2015.<ref>{{cite news|title=Roma-Carpi 5-1, i giallorossi ripartono forte|url=https://www.repubblica.it/sport/calcio/serie-a/roma/2015/09/26/news/roma-carpi_5-1_i_giallorossi_ritrovano_il_sorriso-123752999/|publisher=La Repubblica|language=it|date=26 September 2015|access-date=23 September 2018}}</ref> Vainqueur played a role when came on as a late substitute and set up a late goal, in a 2–0 win against [[Genoa C.F.C.|Genoa]] on 20 December 2015.<ref>{{cite news|title=Roma-Genoa 2-0, Florenzi e Sadiq salvano Garcia|url=https://www.repubblica.it/sport/calcio/serie-a/roma/2015/12/20/news/roma-genoa_2-0_florenzi_e_sadiq_salvano_garcia-129874573/|publisher=La Repubblica|language=it|date=20 December 2015|access-date=23 September 2018}}</ref> In a follow–up match against [[A.C. ChievoVerona|ChievoVerona]] on 6 January 2016, he set up another goal, in a 3–3 draw.<ref>{{cite news|title=Chievo-Roma 3-3, giallorossi rimontati due volte. Garcia torna in bilico|url=https://www.gazzetta.it/Calcio/Serie-A/Chievo/06-01-2016/chievo-roma-3-3-garcia-torna-bilico-giallorossi-rimontati-due-volte-140173886071.shtml|publisher=La Gazzetta Dello Sport|language=it|date=6 January 2016|access-date=23 September 2018}}</ref> For the rest of the 2015–16 season, Vainqueur continued remain out of the first team, due to being on the substitute bench, as well as, his own injury concerns.<ref>{{cite news|title=Roma, Vainqueur: "Arrivai sapendo di non essere un titolare"|url=https://www.tuttomercatoweb.com/serie-a/roma-vainqueur-arrivai-sapendo-di-non-essere-un-titolare-806414|publisher=Tutto Mercato Web|language=it|date=16 March 2016|access-date=23 September 2018}} {{cite news|title=Roma, Uçan e Vainqueur hanno svolto lavoro differenziato|url=https://www.tuttomercatoweb.com/altre-notizie/roma-ucan-e-vainqueur-hanno-svolto-lavoro-differenziato-811966|publisher=Tutto Mercato Web|language=it|date=31 March 2016|access-date=23 September 2018}} {{cite news|title=Roma, lavoro differenziato per Vainqueur e Keita|url=https://www.tuttomercatoweb.com/altre-notizie/roma-lavoro-differenziato-per-vainqueur-e-keita-828304|publisher=Tutto Mercato Web|language=it|date=10 May 2016|access-date=23 September 2018}}</ref> At the end of the 2015–16 season, he went on to make twenty–two appearances in all competitions for Roma.

Throughout the summer [[transfer window]], with no first team appearances, Vainqueur was linked a move away from Roma, as clubs from Europe were interested in signing him.<ref>{{cite news|title=Roma, su Vainqueur c'è l'interessamento del Crystal Palace|url=https://www.tuttomercatoweb.com/serie-a/roma-su-vainqueur-c-e-l-interessamento-del-crystal-palace-866040|publisher=Tutto Mercato Web|language=it|date=17 August 2016|access-date=23 September 2018}} {{cite news|title=Roma, per Vainqueur è sfida fra Torino e Bologna|url=https://www.tuttomercatoweb.com/serie-a/roma-per-vainqueur-e-sfida-fra-torino-e-bologna-868344|publisher=Tutto Mercato Web|language=it|date=22 August 2016|access-date=23 September 2018}} {{cite news|title=Roma, Vainqueur aspetta una chiamata dalla Ligue 1|url=https://www.tuttomercatoweb.com/serie-a/roma-vainqueur-aspetta-una-chiamata-dalla-ligue-1-870642|publisher=Tutto Mercato Web|language=it|date=28 August 2016|access-date=23 September 2018}}</ref> This also included his former club, Standard Liège.<ref>{{cite news|title="Standard probeert weer middenvelder weg te halen bij Nantes"|url=https://www.nieuwsblad.be/cnt/dmf20160519_02296948|publisher=Nieuwsblad|language=nl|date=19 May 2016|access-date=23 September 2018}}</ref>

====Olympique de Marseille (loan)==== On 31 August 2016, Vainqueur joined French club [[Olympique de Marseille|Marseille]] on a season-long loan deal.<ref>{{cite web|url=https://www.om.net/actualites/264511/william-vainqueur-est-olympien|title=William Vainqueur est Olympien|trans-title=William Vainqueur is Olympien|language=fr|publisher=Olympique de Marseille|date=31 August 2016|access-date=31 August 2016|archive-date=2 September 2016|archive-url=https://web.archive.org/web/20160902025852/https://www.om.net/actualites/264511/william-vainqueur-est-olympien|url-status=dead}} {{cite web|last1=Gaudot|first1=Christophe|title=Mercato : William Vainqueur prêté à l'OM|url=http://www.francetvsport.fr/football/ligue-1/vainqueur-a-l-om-356701|access-date=26 September 2016|language=fr|website=francetvsport.fr|date=31 August 2016}}</ref> He revealed that he grew up supporting Olympique de Marseille as a young boy.<ref>{{cite news|title=W. VAINQUEUR : " VOIR L'OM SI BAS AU CLASSEMENT, ÇA FAIT MAL "|url=http://www.football365.fr/w-vainqueur-voir-lom-bas-classement-ca-mal-2728333.html|publisher=Football 365|language=fr|date=2 October 2016|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180923235232/hhttp://www.football365.fr/w-vainqueur-voir-lom-bas-classement-ca-mal-2728333.html|archive-date=23 September 2018|url-status=dead}}</ref>

Vainqueur made his Olympique de Marseille debut, starting a match and played 68 minutes before being substituted, in a 3–2 loss against [[OGC Nice]] on 11 September 2016.<ref>{{cite news|title=L1 – NICE : MARIO BALOTELLI MARQUE SES DÉBUTS CONTRE MARSEILLE|url=http://www.football365.fr/l1-nice-mario-balotelli-marque-debuts-contre-marseille-2693353.html|publisher=Football 365|language=fr|date=11 September 2016|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20160914205205/http://www.football365.fr/l1-nice-mario-balotelli-marque-debuts-contre-marseille-2693353.html|archive-date=14 September 2016|url-status=dead}} {{cite news|title=Ligue 1: Nice s'offre le derby face à Marseille (3-2)|url=https://www.cnews.fr/foot/2016-09-11/ligue-1-nice-soffre-le-derby-face-marseille-3-2-738289|website=C News|language=fr|date=11 September 2016|access-date=14 October 2024}}</ref> Since joining the club, he quickly established himself in the first team, playing in the defensive–midfield position.<ref>{{cite news|title=L1 – MARSEILLE : LE RETOUR DE LASSANA DIARRA SE PRÉCISE ET L'OM EN A BIEN BESOIN|url=http://www.football365.fr/l1-marseille-retour-de-lassana-diarra-se-precise-lom-a-bien-besoin-2721808.html|publisher=Football 365|language=fr|date=28 September 2016|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20161001054341/http://www.football365.fr/l1-marseille-retour-de-lassana-diarra-se-precise-lom-a-bien-besoin-2721808.html|archive-date=1 October 2016|url-status=dead}} {{cite news|title=L'OM a battu Metz sur un but de Bafétimbi Gomis|url=https://www.lequipe.fr/Football/match-direct/championnat-d-italie/2018-2019/torino-naples/434689|publisher=L’Equipe|language=fr|date=16 October 2016|access-date=23 September 2018}}</ref> However, in mid–October, Vainqueur suffered a hamstring injury that kept him out throughout the month.<ref>{{cite news|title=L'OM sans Vainqueur, avec Machach et Zambo Anguissa à Paris|url=https://www.lequipe.fr/Football/Actualites/L-om-sans-vainqueur-avec-machach-et-zambo-anguissa-a-paris/739501|publisher=L’Equipe|language=fr|date=22 October 2016|access-date=23 September 2018}}</ref> On 20 November 2016, he returned to the first team from injury, in a 1–0 win over [[Stade Malherbe Caen|SM Caen]].<ref>{{cite news|title=L1 (J13) : ROLANDO DÉLIVRE MARSEILLE FACE À CAEN|url=http://www.football365.fr/l1-j13-rolando-delivre-marseille-face-a-caen-2812012.html|publisher=Football 365|language=fr|date=20 November 2016|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20161122104748/http://www.football365.fr/l1-j13-rolando-delivre-marseille-face-a-caen-2812012.html|archive-date=22 November 2016|url-status=dead}}</ref> Vainqueur then regained his first team place, where he resumed playing in the defensive midfield.<ref>{{cite news|title=Ligue 1 : Les changements de coach à Marseille, Lorient et Lille ont-ils été bénéfiques?|url=https://www.lequipe.fr/Football/Actualites/Ligue-1-les-changements-de-coach-a-marseille-lorient-et-lille-ont-ils-ete-benefiques/761838|publisher=L’Equipe|language=fr|date=21 December 2016|access-date=23 September 2018}} {{cite news|title=Quelles solutions pour Rudi Garcia?|url=https://www.lequipe.fr/Football/Actualites/Quelles-solutions-pour-rudi-garcia/778105|publisher=L’Equipe|language=fr|date=18 February 2017|access-date=23 September 2018}}</ref> In a match against [[Lille OSC|Lille]] on 18 December 2016, he set up a goal for [[Florian Thauvin]] to score Olympique de Marseille's second goal of the game, in a 2–0 win.<ref>{{cite news|title=Marseille domine Lille et remonte à la 6e place de L1|url=https://www.lequipe.fr/Football/Actualites/Marseille-domine-lille-et-remonte-a-la-6e-place-de-l1/761486|publisher=L’Equipe|language=fr|date=18 December 2016|access-date=23 September 2018}}</ref> Despite missing two more matches later in the season,<ref>{{cite news|title=L1 – OM : CABELLA ET ALESSANDRINI SONT DANS LE GROUPE|url=http://www.football365.fr/l1-om-cabella-alessandrini-groupe-2907952.html|publisher=Football 365|language=fr|date=21 January 2017|access-date=23 September 2018}} {{cite news|title=OM : Grégory Sertic titulaire contre Lille|url=https://www.lequipe.fr/Football/Actualites/Om-gregory-sertic-titulaire-contre-lille/786430|publisher=L’Equipe|language=fr|date=17 March 2017|access-date=23 September 2018}}</ref> Vainqueur went on to make thirty–three appearances in all competitions.

Despite keen on joining the club on a permanent basis at the end of the 2016–17 season, Olympique de Marseille did not make a permanent offer on Vainqueur.<ref>{{cite news|title=Vainqueur sul futuro: "Roma? Garcia vuole trattenermi"|url=https://www.tuttomercatoweb.com/serie-a/vainqueur-sul-futuro-roma-garcia-vuole-trattenermi-972152|publisher=Tutto Mercato Web|language=it|date=16 May 2017|access-date=23 September 2018}} {{cite news|title=William Vainqueur déçu par l'attitude de l'OM|url=https://www.lequipe.fr/Football/Actualites/William-vainqueur-decu-par-l-attitude-de-l-om/830669|publisher=L’Equipe|language=fr|date=1 September 2017|access-date=23 September 2018}}</ref>

===Antalyaspor=== On 4 September 2017, Vainqueur moved to [[Süper Lig]] side [[Antalyaspor]] on a three-year contract.<ref>{{cite news|last1=Van Snick|first1=Glenn|title=William Vainqueur vindt onderdak bij Antalyaspor|url=http://www.hln.be/hln/nl/950/Buitenlands-Voetbal/article/detail/3250769/2017/09/04/William-Vainqueur-vindt-onderdak-bij-Antalyaspor.dhtml|access-date=4 September 2017|work=Het Laatste Nieuws|date=4 September 2017|language=nl}}</ref> The move reported to have cost 500,000 euros.<ref>{{cite news|title=Antalyaspor, Vainqueur ile 3 yılık sözleşme imzaladı|url=https://www.milliyet.com.tr/antalyaspor-vainqueur-ile-3-yilik-antalyaspor-2513833-skorerhaber/|publisher=Milliyet|language=tr|date=4 September 2017|access-date=23 September 2018}}</ref> Upon joining the club, he was offered a chance to join [[Galatasaray S.K. (football)|Galatasaray]] but opted to join Antalyaspor.<ref>{{cite news|title=Vainqueur: "Galatasaray'dan Teklif Aldım Ama Tercihim Antalyaspor Oldu"|url=https://www.milliyet.com.tr/vainqueur-galatasaray-dan-teklif-aldim-antalya-yerelhaber-2258601/|publisher=Milliyet|language=tr|date=5 September 2017|access-date=23 September 2018}}</ref> Vainqueur was also given a number nineteen shirt.<ref>{{cite news|title=Vainqueur İçin İmza Töreni|url=https://www.milliyet.com.tr/vainqueur-icin-imza-toreni--yerelhaber-2258707/|publisher=Milliyet|language=tr|date=5 September 2017|access-date=23 September 2018}}</ref>

He made his debut for Antalyaspor, starting a match before coming off at half time, in a 2–0 win over [[Kayserispor]] on 15 September 2017.<ref>{{cite news|title=Kayserispor –Antalyaspor: 0-2|url=https://www.milliyet.com.tr/kayserispor-antalyaspor-u-devirdi--antalyaspor-kayserispor-2520211-skorerhaber/|publisher=Milliyet|language=tr|date=15 September 2017|access-date=23 September 2018}}</ref> However, Vainqueur suffered two separate injuries between mid–October and early–November.<ref>{{cite news|title=Antalyaspor Eksik Calisti!|url=https://www.milliyet.com.tr/antalyaspor-eksik-calisti--antalyaspor-goztepe-2535779-skorerhaber/|publisher=Milliyet|language=tr|date=12 October 2017|access-date=23 September 2018}} {{cite news|title=Leonardo: "Alacagimiz 2-3 Galibiyetle Ucacagiz|url=https://www.milliyet.com.tr/leonardo-alacagimiz-2-3-galibiyetle-antalya-yerelhaber-2374927/|publisher=Milliyet|language=tr|date=1 November 2017|access-date=23 September 2018}}</ref> As a result, he failed to make an impact for the club, having played 715 minutes in ten matches by the end of the year.<ref>{{cite news|title=Antalyaspor'da Yeni Transferlerin Adı: 'Hüsran' Oldu|url=https://www.milliyet.com.tr/antalyaspor-da-yeni-transferlerin-adi-antalya-yerelhaber-2480735/|publisher=Milliyet|language=tr|date=21 December 2017|access-date=23 September 2018}} {{cite news|title=Il Toro punta a Vainqueur per rafforzare la mediana|url=https://www.lastampa.it/2018/01/12/sport/il-toro-punta-a-vainqueur-per-rafforzare-la-mediana-02jJG8Mf8zCxvxUmvcpAXO/pagina.html|publisher=La Stampa|language=it|date=12 January 2018|access-date=23 September 2018}}</ref> While on the sidelines from injury, it was reported that his contract at Antalyaspor was then terminated on 31 January 2018.<ref>{{cite news|title="Başladığım Günden Bu Yana Takımda Çok Fark Var"|url=https://www.milliyet.com.tr/basladigim-gunden-bu-yana-takimda-cok--yerelhaber-2535328/|publisher=Milliyet|language=tr|date=16 January 2018|access-date=23 September 2018}} {{cite news|title=William Vainqueur a résilié son contrat avec Antalyaspor|url=https://www.lequipe.fr/Football/Actualites/William-vainqueur-a-resilie-son-contrat-avec-antalyaspor/871892|publisher=L’Equipe|language=fr|date=31 January 2018|access-date=23 September 2018}}</ref> Unfortunately, he remained at the club after deciding against leaving Antalyaspor following some of his teammates left the club, as a result of their financial problems.<ref>{{cite news|title=MERCATO: VAINQUEUR N'A PAS RÉSILIÉ SON CONTRAT AVEC ANTALYASPOR|url=https://rmcsport.bfmtv.com/football/mercato-vainqueur-n-a-pas-resilie-son-contrat-avec-antalyaspor-1380933.html|publisher=RMC Sports|language=fr|date=23 February 2018|access-date=23 September 2018}}</ref> Vainqueur made his return to the first team on 19 February 2018, coming on as a late substitute, in a 2–1 win over Kayserispor.<ref>{{cite news|title=Spor Toto Süper Lig: Antalyaspor: 2 - Kayserispor: 1 (Maç Sonucu)|url=https://www.milliyet.com.tr/spor-toto-super-lig-antalyaspor-2-kayserispor-antalya-yerelhaber-2602925/|publisher=Milliyet|language=tr|date=19 February 2018|access-date=23 September 2018}}</ref> However, towards the end of the 2017–18 season, he was sidelined on two separate occasions, due to suspension and injuries.<ref>{{cite news|title=Yaralı ama cesur|url=https://www.sabah.com.tr/akdeniz/2018/03/16/yarali-ama-cesur|publisher=Sabah|language=tr|date=16 March 2018|access-date=23 September 2018}} {{cite news|title=Murat Özgen: Antalyaspor'un çimentosu|url=https://www.sabah.com.tr/akdeniz/2018/04/17/murat-ozgen-antalyasporun-cimentosu|publisher=Sabah|language=tr|date=17 April 2018|access-date=23 September 2018}}</ref> He went on to make twenty appearances in all competitions at his first season at Antalyaspor.

Ahead of the 2018–19 season, it was reported that Vainqueur was released by Antalyaspor once again.<ref>{{cite news|title=Antalyaspor'da William Vainqueur ikinci kez sözleşmesini tek taraflı fesih ederek serbest kaldı|url=https://www.aksam.com.tr/spor/antalyasporda-william-vainqueur-ikinci-kez-sozlesmesini-tek-tarafli-fesih-ederek-serbest-kaldi/haber-737845|publisher=Aksam|language=tr|date=22 May 2018|access-date=23 September 2018}}</ref> However, he stayed at the club in the end. Nevertheless, Vainqueur was linked a move away from Antalyaspor.<ref>{{cite news|title=Olympiakos, Antalyasporlu William Vainqueur'u gündemine aldı|url=https://www.aksam.com.tr/spor/olympiakos-antalyasporlu-william-vainqueuru-gundemine-aldi/haber-763548|publisher=Aksam|language=tr|date=11 August 2018|access-date=23 September 2018}} {{cite news|title=Intérêt concret pour Vainqueur, le défenseur espéré rapidement|url=https://www.ladepeche.fr/article/2018/07/13/2835719-interet-concret-pour-vainqueur-le-defenseur-espere-rapidement.html|publisher=La Depeche|language=fr|date=13 July 2018|access-date=23 September 2018}} {{cite news|title=Antalyaspor'un yildizi Vainqueur'a Fransa'dan talip!|url=https://www.sporx.com/antalyasporun-yildizi-vainqueura-fransadan-talip-SXHBQ713339SXQ|publisher=Sporx|language=tr|date=19 July 2018|access-date=23 September 2018}}</ref> He made his three starts for the club in the first four league matches of the season.<ref>{{cite news|title=Antalyaspor – Atiker Konyaspor: 3-3|url=https://www.milliyet.com.tr/antalya-da-cilgin-duello-6-gol--antalyaspor-atiker-konyaspor-2727360-skorerhaber/|publisher=Milliyet|language=tr|date=18 August 2018|access-date=23 September 2018}} {{cite news|title=Beşiktaş sahasında Antalyaspor'a 3-2 mağlup oldu|url=https://gunes.com/spor/besiktas-antalyasporu-konuk-ediyor-iste-muhtemel-11ler-904279|publisher=Gunes|language=tr|date=26 August 2018|access-date=23 September 2018}}</ref> However, Vainqueur suffered an injury that saw him out for a month.<ref>{{cite news|title=Hamza Hamzaoğlu'dan Antalyaspor taraftarına William Vainqueur müjdesi!|url=https://www.futbolarena.com/antalyaspor/hamza-hamzaogludan-antalyaspor-taraftarina-william-vainqueur-mujdesi-339896h/|publisher=Futbol Arena|language=tr|date=3 September 2018|access-date=23 September 2018}}</ref> On 30 October 2018, he made his return from injury, starting the whole game, in a 4–1 win against Yomraspor in the fourth round of the Türkiye Kupasi.<ref>{{cite web|url=http://www.antalyaspor.com.tr/tr/futbol-haberleri/ztk_-_antalyaspor_-_yomraspor_2018-10-30_204037.html|title= ZTK - Antalyaspor 4 - 1 Yomraspor|website=Antalyaspor|language=tr|date=30 October 2018|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20240528111030/http://www.antalyaspor.com.tr/tr/futbol-haberleri/ztk_-_antalyaspor_-_yomraspor_2018-10-30_204037.html|archive-date=28 May 2024|url-status=live}}</ref> His return was short–lived when Vainqueur suffered two separate occasions in the first half of the season.<ref name="Vainqueur Medical Injury"/> After leaving Antalyaspor, he made nine appearances in all competitions.

At the end of the 2019–20 season, Vainqueur was finally released by Antalyaspor.<ref>{{cite news|title=Antalyaspor 11 oyuncuyu renklerine bağladı|url=https://www.milliyet.com.tr/skorer/antalyaspor-11-oyuncuyu-renklerine-bagladi-6323186|website=Milliyet|language=tr|date=6 October 2020|access-date=14 October 2024}}</ref> After leaving the club, he quietly announced his retirement from professional football.

====Monaco (loan)==== On 9 January 2019, Antalyaspor announced that Vainqueur joined [[AS Monaco FC|Monaco]] on loan until the end of the [[2018–19 AS Monaco FC season|2018–19 season]].<ref>{{cite web|publisher=Antalyaspor|url=http://www.antalyaspor.com.tr/haber/kamuoyuna_duyurulur_2019-01-09_151221|title=Kamuoyuna Duyurulur|trans-title=Public announcement|date=9 January 2019|language=tr|archiveurl=https://web.archive.org/web/20190109220618/http://www.antalyaspor.com.tr/haber/kamuoyuna_duyurulur_2019-01-09_15122|archive-date=9 January 2019|url-status=dead}} {{cite news|title=Le milieu William Vainqueur prêté par Antalyaspor à Monaco|url=https://www.lequipe.fr/Football/Actualites/Le-milieu-william-vainqueur-prete-par-antalyaspor-a-monaco/975607|publisher=L'Équipe|language=fr|date=9 January 2019|access-date=9 January 2019}}</ref> It was initially a permanent transfer but it was cancelled in favour of a loan following a failed medical.<ref name="Vainqueur Medical Injury">{{cite web|url=https://www.antalyaspor.com.tr/tr/antalya-spor-haberleri/kamuoyuna_duyurulur_2019-01-11_141329.html|title=Kamuoyuna Duyurulur|website=Antalyaspor|language=tr|date=11 January 2019|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20241008192041/https://www.antalyaspor.com.tr/tr/antalya-spor-haberleri/kamuoyuna_duyurulur_2019-01-11_141329.html|archive-date=8 October 2024|url-status=live}}</ref>

He made his debut for the club, coming on as a 67th-minute substitute, in a 2–0 loss against [[Dijon FCO|Dijon]] on 26 January 2019.<ref>{{cite news|title=L1 : Battu à Dijon, Monaco continue de s'enfoncer|url=https://www.football365.fr/apresmatch/l1-battu-a-dijon-monaco-continue-de-senfoncer-8854354.html|website=Football 365|language=fr|date=26 January 2019|access-date=14 October 2024}}</ref> However, Vainqueur received a straight red card in the 14th minute of the game for a "dangerous tackle" on [[Marcus Thuram]], as AS Monaco went on lose on penalties following a 2–2 draw against [[En Avant Guingamp|Guingamp]] in the semi–finals of the [[Coupe de la Ligue]].<ref>{{cite news|title=Guingamp, au bout du suspense, se qualifie pour la finale de la Coupe de la Ligue au détriment de Monaco|url=https://www.lequipe.fr/Football/Actualites/Guingamp-au-bout-du-suspense-se-qualifie-pour-la-finale-de-la-coupe-de-la-ligue-au-detriment-de-monaco/983211|website=L’Equipe|language=fr|date=29 January 2019|access-date=14 October 2024}}</ref> After serving his suspension, his return was short–lived when he suffered a calf injury once again.<ref>{{cite news|title= William Vainqueur (Monaco) suspendu deux matches ferme plus un avec sursis|url=https://www.lequipe.fr/Football/Actualites/William-vainqueur-monaco-suspendu-trois-matches-dont-un-avec-sursis/986101|website=L’Equipe|language=fr|date=6 February 2019|access-date=14 October 2024}} {{cite news|title=William Vainqueur (Monaco) blessé à un mollet|url=https://www.football365.fr/william-vainqueur-monaco-blesse-a-mollet-8887945.html|website=Football 365|language=fr|date=14 February 2019|access-date=14 October 2024}}</ref> On 15 March 2019, Vainqueur returned from injury, coming on as a 79th-minute substitute, in a 1–0 win against [[LOSC Lille]].<ref>{{cite news|title=Lille surpris par Monaco à la dernière minute par un but de Vinicius|url=https://www.lequipe.fr/Football/Actualites/Lille-surpris-par-monaco-a-la-derniere-minute-par-un-but-de-vinicius/999038|website=L’Equipe|language=fr|date=15 March 2019|access-date=14 October 2024}}</ref> However, his return was short–lived once again when he suffered an abductor injury that eventually kept him out for the rest of the season.<ref>{{cite news|title=AS Monaco : le groupe pour le déplacement à Paris|url=https://www.footmercato.net/a9097388572976133562-as-monaco-le-groupe-pour-le-deplacement-a-paris|website=Foot Mercato|language=fr|date=20 April 2019|access-date=14 October 2024}}</ref> At the end of the 2018–19 season, Vainqueur made four appearances in all competitions.

====Toulouse (loan)==== On 26 June 2019, Vainqueur joined [[Toulouse FC|Toulouse]] on loan until 30 June 2020.<ref>{{cite web|url=https://www.toulousefc.com/fr/william-vainqueur-nouveau-joueur-du-toulouse-fc|title=William Vainqueur, nouveau joueur du Toulouse FC!|website=Toulouse FC|language=fr|date=26 June 2019|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20191114195447/https://www.toulousefc.com/fr/william-vainqueur-nouveau-joueur-du-toulouse-fc|archive-date=14 November 2019|url-status=live}} {{cite web|url=https://www.antalyaspor.com.tr/tr/futbol-haberleri/duyuru.html|title=Duyuru|website=Antalyaspor|language=tr|date=26 June 2019|access-date=14 October 2024|archiveurl=https://web.archive.org/web/20190701082716/https://www.antalyaspor.com.tr/tr/futbol-haberleri/duyuru.html|archive-date=1 July 2019|url-status=live}}</ref><ref name="Vainqueur Background">{{cite news|title=Qui sont les premiers renforts du TFC ? La Dépêche fait les présentations|url=https://www.ladepeche.fr/2019/07/01/qui-sont-les-premiers-renforts-du-tfc-la-depeche-fait-les-presentations,8288460.php|website=La Depeche|language=fr|date=1 July 2019|access-date=14 October 2024}}</ref>

He made his debut for the club, starting the match, in a 1–1 draw against [[Stade Brestois 29|Stade Brestois]] in the opening game of the season.<ref>{{cite news|title=TFC : Casanova affiche ses ambitions pour la reprise face à Brest|url=https://www.ladepeche.fr/2019/08/10/tfc-nouvelle-saison-nouveau-destin,8355258.php|website=La Depeche|language=fr|date=10 August 2019|access-date=14 October 2024}} {{cite news|title=TFC : la fin, le moyen et un bon point|url=https://www.ladepeche.fr/2019/08/11/tfc-la-fin-et-le-moyen,8356341.php|website=La Depeche|language=fr|date=11 August 2019|access-date=14 October 2024}}</ref> Since joining Toulouse, Vainqueur became a first team regular, playing in the defensive midfield position.<ref>{{cite news|title=Toulouse : notre équipe-type du TFC|url=https://www.ladepeche.fr/2019/08/05/notre-equipe-type-du-tfc,8347186.php|website=La Depeche|language=fr|date=5 August 2019|access-date=14 October 2024}} {{cite news|title=TFC : piégé dans l'arène nîmoise|url=https://www.ladepeche.fr/2019/09/22/tfc-piege-dans-larene-nimoise,8430346.php|website=La Depeche|language=fr|date=22 September 2019|access-date=14 October 2024}} {{cite news|title=Vainqueur, enfin rayonnant|url=https://www.ladepeche.fr/2019/10/21/vainqueur-enfin-rayonnant,8494410.php|website=La Depeche|language=fr|date=21 October 2019|access-date=14 October 2024}}</ref> However, he was out on three separate occasions, due to being dropped from the squad over fitness concern.<ref>{{cite news|title=TFC : avalanche des blessés avant le match de Coupe de la Ligue à Niort|url=https://www.ladepeche.fr/2019/10/29/tfc-avalanche-des-blesses-avant-le-match-de-coupe-de-la-ligue-a-niort,8511669.php|website=La Depeche|language=fr|date=29 October 2019|access-date=14 October 2024}} {{cite news|title=Ibrahim Sangaré, l'atterrissage forcé|url=https://www.ladepeche.fr/2019/11/19/ibrahim-sangare-latterrissage-force,8550014.php|website=La Depeche|language=fr|date=19 November 2019|access-date=14 October 2024}} {{cite news|title=Toulouse. Le TFC veut s'appuyer sur ses (maigres) certitudes|url=https://www.ladepeche.fr/2020/02/05/le-tfc-veut-sappuyer-sur-ses-maigres-certitudes,8711437.php|website=La Depeche|language=fr|date=5 February 2020|access-date=14 October 2024}}</ref> The season ended abruptly, due to the [[COVID-19 pandemic in France|COVID-19 pandemic]].<ref>{{cite web|url=https://www.eurosport.co.uk/football/ligue-1/2019-2020/football-news-france-suspends-all-football-over-coronavirus_sto7702591/story.shtml|title=France suspends all football over coronavirus|publisher=Eurosport|date=12 March 2020|access-date=23 September 2024|archive-date=16 October 2021|archive-url=https://web.archive.org/web/20211016102904/https://www.eurosport.co.uk/football/ligue-1/2019-2020/football-news-france-suspends-all-football-over-coronavirus_sto7702591/story.shtml|url-status=live}}</ref> At the end of the 2019–20 season, Vainqueur made twenty–one appearances in all competitions. Following this, his loan spell at the club came to an end.<ref>{{cite news|title=TFC : dirigeants, entraîneurs, effectif... ce qui va changer la saison prochaine|url=https://www.ladepeche.fr/2020/07/15/tfc-dirigeants-entraineurs-effectif-ce-qui-changera-la-saison-prochaine-8980403.php|website=La Depeche|language=fr|date=15 July 2020|access-date=14 October 2024}}</ref>

==International career== Vainqueur is eligible to play for either [[France national football team|France]] and [[Haiti national football team|Haiti]].<ref>{{cite news |script-title=ru:Вильям Венкер: «В футболе мало друзей, все они из моего города, моего гетто»|url=https://www.sports.ru/football/1029097735.html|publisher=Sports.ru|language=ru|date=23 April 2015|access-date=23 September 2018}}</ref><ref name="Vainqueur Background"/> It was made clear that Vainqueur was interested playing for France, but was never called up.<ref>{{cite news |script-title=ru:Матье Вальбуэна: Ванкеру нужно проявить себя в играх за «Динамо», чтобы попасть в сборную Франции|url=https://www.sovsport.ru/football/news/779618-matie-valbuena-vankeru-nuzhno-projavit-sebja-v-igrah-za-dinamo-chtoby-popast-v-sbornuju-francii|publisher=Soviet Sports|language=ru|date=19 February 2015|access-date=23 September 2018}} {{cite news |script-title=ru:Дидье Дешам: Ванкер — кандидат в сборную Франции|url=https://www.sovsport.ru/football/news/826844-didie-desham-vanker-kandidat-v-sbornuju-francii|publisher=Sov Sports|language=ru|date=27 July 2015|access-date=23 September 2018}}</ref>

===Youth career=== Vainquerer made his first called up in April 2007 for the [[France national under-19 football team|France U19]] for a match against [[Congo national football team|Congo U19]].<ref>{{cite news|title=BLEUS -19 ANS : SÉLECTION FACE AU CONGO|url=http://www.football365.fr/bleus-19-ans-selection-face-au-congo-1346555.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915125957/http://www.football365.fr/bleus-19-ans-selection-face-au-congo-1346555.html|archive-date=15 September 2018|url-status=dead}}</ref> However, his appearance in a 5–2 win over [[Serbia national under-19 football team|Serbia U19]] on 16 July 2007 saw him played 28 minutes after rupturing his cruciate ligaments on his right knee.<ref name="Vainquerer Right Knee">{{cite news|title=NANTES : VAINQUEUR OPÉRÉ|url=http://www.football365.fr/nantes-vainqueur-opere-1403129.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915142636/http://www.football365.fr/nantes-vainqueur-opere-1403129.html|archive-date=15 September 2018|url-status=dead}}</ref><ref name="Vainquerer Right Knee 2">{{cite news|title=NANTES : INQUIÉTUDE POUR VAINQUEUR|url=http://www.football365.fr/nantes-inquietude-pour-vainqueur-1593141.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915145256/http://www.football365.fr/nantes-inquietude-pour-vainqueur-1593141.html|archive-date=15 September 2018|url-status=dead}}</ref> He went on to make three appearances for the France U19 side.

In March 2009, Vainqueur was called up to the [[France national under-21 football team|France U21]] squad.<ref>{{cite news|title=ESPOIRS : LA LISTE POUR LES MATCHS AMICAUX|url=http://www.football365.fr/espoirs-la-liste-pour-les-matchs-amicaux-1406079.html|publisher=Football 365|language=fr|date=20 July 2011|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20180915145256/http://www.football365.fr/espoirs-la-liste-pour-les-matchs-amicaux-1406079.html|archive-date=15 September 2018|url-status=dead}}</ref> He made his France U21 debut on 27 March 2009, where he started the match, in a 3–0 win over [[Estonia national under-21 football team|Estonia U21]].<ref>{{cite news|title=TOUS LES MATCHS: FRANCE 3 – 0 ESTONIE |url=https://www.fff.fr/equipes-de-france/3/espoirs/matchs/15/2009-03-27/france-estonie|publisher=French Football Federation|language=fr|date=27 March 2009|access-date=23 September 2018|archiveurl=https://web.archive.org/web/20140427061410/https://www.fff.fr/equipes-de-france/3/espoirs/matchs/15/2009-03-27/france-estonie|archive-date=27 April 2014|url-status=dead}}</ref>

==Personal life== Vainqueur is of [[Haitians|Haitian]] descent.<ref>{{cite web|title=William Vainqueur: Le Franco-Haïtien Proche de Dinamo Moscou|date=25 June 2014 |url=https://www.africatopsports.com/2014/06/25/william-vainqueur-franco-haitien-proche-dinamo-moscou/|publisher=African Top Sports|access-date= 12 July 2014}}</ref><ref>{{cite web|url=http://m.insideroma.com/news/calciomercato/scheda-william-vainqueur-possibile-acquisto-della-roma-id.45681|title=SCHEDA - William Vainqueur, possibile acquisto della Roma|editor=Aprilini, Davide|date=28 August 2015|publisher=Insider Roma|access-date=29 March 2016|language=it}}</ref> Growing up, he revealed that he spent his holidays, going to Haiti.<ref name="Vainqueur Haiti">{{cite web|url=http://fcdynamo.ru/news/interview/?id_4=11576 |script-title=ru:Вильям Ванкер: В футболе бывают только товарищи. Все мои настоящие друзья – в гетто|publisher=FC Dynamo Moscow|language=ru|date=22 April 2015|access-date=23 September 2018|archive-url=https://web.archive.org/web/20180923084024/http://fcdynamo.ru/news/interview/?id_4=11576|archive-date=23 September 2018|url-status=live}}</ref> Growing up in [[Neuilly-sur-Marne]], a commune in the eastern suburbs of [[Paris]], Vainqueur revealed that he grew in dangerous part of Neuilly-sur-Marne and saw his friends doing drugs or ended up in hospital.<ref name="Vainqueur Haiti"/> He has stated that if he didn't made it as a footballer, he wanted it to become an architect and designer.<ref name="Vainqueur Awards"/>

Vainqueur is [[Muslim]].<ref>{{cite news|title=Jouer sans boire ni manger|url=https://nantes.maville.com/sport/detail_-jouer-sans-boire-ni-manger_37933-1049793_actu.Htm|publisher=Nantes Maville|language=fr|date=28 August 2009 |archive-url=https://web.archive.org/web/20180915212226/https://nantes.maville.com/sport/detail_-jouer-sans-boire-ni-manger_37933-1049793_actu.Htm |archive-date=September 15, 2018}}</ref> He speaks French and English.<ref name="Vainqueur Language"/> In September 2008, Vainqueur became a father for the first time, when his girlfriend gave birth to a baby girl, Kayci.<ref>{{cite web|url=https://fcnantes.fr/articles/article2809.php?num=284|title=WILLIAM VAINQUEUR PAPA!|publisher=FC Nantes|language=fr|date=8 September 2008|access-date=23 September 2018|archive-url=https://web.archive.org/web/20180915162827/http://fcnantes.fr/articles/article2809.php?num=28|archive-date=15 September 2018|url-status=live}}</ref> Six years later, he became a father for a second time with a baby boy, Kayes. His father-in-law is Abdoulaye Ka.<ref>{{cite news|title=Quand l'OM confond le beau-père de William Vainqueur avec Youssou N'Dour|url=https://www.lequipe.fr/Football/Actualites/Quand-l-om-confond-le-beau-pere-de-william-vainqueur-avec-youssou-n-dour/789453|publisher=L’Equipe|language=fr|date=30 March 2017|access-date=23 September 2018}}</ref>

During his time at Dynamo Moscow, Igor Tsarush, commenting on [[racism in Russia]], said that "Somehow Vainqueur asked why there are so few black people on the streets? I explained to him that when France conquered the colonies, it did it in Africa. That Russia had union republics, and we have more residents from there."<ref>{{cite news |script-title=ru:«Бабки на стол, или депортируем!» Как у Мвила не нашлось $10 тысяч на квартиру|url=https://www.sovsport.ru/football/articles/827870-babki-na-stol-ili-deportiruem-kak-u-mvila-ne-nashlos-10-tysjach-na-kvartiru|publisher=Soviet Sports|language=ru|date=30 July 2015|access-date=23 September 2018}}</ref> Commenting on Moscow in July 2015, Vainqueur said: "Moscow is not at all what exists in the stereotypes of many Europeans. It is commonly believed that this is an old city, cold, somewhat archaic. In any case, this image was formed before my first visit to Russia. As soon as I flew to Moscow, I realized what kind of nonsense this was."<ref name="Vainqueur Language">{{cite web|url=http://fcdynamo.ru/news/interview/?id_4=11695 |script-title=ru:Вильям Ванкёр: Не думаю, что Вальбуэна покинет «Динамо»|publisher=FC Dynamo Moscow|language=ru|date=3 July 2015|access-date=23 September 2018|archive-url=https://web.archive.org/web/20180923084154/http://fcdynamo.ru/news/interview/?id_4=11695|archive-date=23 September 2018|url-status=live}}</ref>

On 23 February 2020, Vainqueur’s home was robbed whilst playing for Toulouse against LOSC Lille.<ref>{{cite news|title=Pendant le match Lille - TFC, un joueur de Toulouse cambriolé|url=https://www.ladepeche.fr/2020/02/24/pendant-le-match-lille-tfc-un-joueur-de-toulouse-cambriole,8753113.php|website=La Depeche|language=fr|date=24 February 2020|access-date=14 October 2024}}</ref>

==References== {{reflist}}

==External links== * {{FFF player|7187-vainqueur-william}} * {{FFF male player|811820272|archive=}} * {{Soccerway}}

{{DEFAULTSORT:Vainqueur, William}} [[Category:1988 births]] [[Category:French Muslims]] [[Category:Haitian Muslims]] [[Category:Living people]] [[Category:People from Neuilly-sur-Marne]] [[Category:Footballers from Seine-Saint-Denis]] [[Category:French men's footballers]] [[Category:France men's youth international footballers]] [[Category:France men's under-21 international footballers]] [[Category:Men's association football midfielders]] [[Category:FC Nantes players]] [[Category:Standard Liège players]] [[Category:FC Dynamo Moscow players]] [[Category:AS Roma players]] [[Category:Olympique de Marseille players]] [[Category:Antalyaspor footballers]] [[Category:AS Monaco FC players]] [[Category:Toulouse FC players]] [[Category:Ligue 1 players]] [[Category:Ligue 2 players]] [[Category:Belgian Pro League players]] [[Category:Russian Premier League players]] [[Category:Serie A players]] [[Category:Süper Lig players]] [[Category:French expatriate men's footballers]] [[Category:Expatriate men's footballers in Belgium]] [[Category:Expatriate men's footballers in Italy]] [[Category:Expatriate men's footballers in Monaco]] [[Category:Expatriate men's footballers in Russia]] [[Category:Expatriate men's footballers in Turkey]] [[Category:French expatriate sportspeople in Belgium]] [[Category:French expatriate sportspeople in Italy]] [[Category:French expatriate sportspeople in Monaco]] [[Category:French expatriate sportspeople in Russia]] [[Category:French expatriate sportspeople in Turkey]] [[Category:Black French sportspeople]] [[Category:French sportspeople of Haitian descent]] [[Category:21st-century French sportsmen]]