{{short description|Singaporean footballer}} {{Use dmy dates|date=September 2024}} {{Infobox football biography | name = Bill Mamadou | image = Johor Darul Ta'zim v Lion City Sailors 79.jpg | caption = Bill warming up for Lion City Sailors in 2024 | fullname = Bah Bill Abuzar Mamadou | birth_date = {{birth date and age|2001|09|08|df=y}} | birth_place = Singapore | height = | currentclub = Nakhon Ratchasima | clubnumber = 3 | position = Defender | youthyears1 = | youthclubs1 = National Football Academy | years1 = 2019–2025 | clubs1 = Lion City Sailors | caps1 = 22 | goals1 = 0 | years2 = 2020–2021 | clubs2 = → Young Lions (loan) | caps2 = 8 | goals2 = 0 | years3 = 2025 | clubs3 = → Young Lions (loan) | caps3 = 8 | goals3 = 0 | years4 = 2025– | clubs4 = Nakhon Ratchasima | caps4 = 7 | goals4 = 0 | nationalyears1 = 2017 | nationalteam1 = Singapore U17 | nationalcaps1 = | nationalgoals1 = | nationalyears2 = 2023–2025 | nationalteam2 = Singapore U23 | nationalcaps2 = 7 | nationalgoals2 = 0 | club-update = 14 May 2021 (UTC) | nationalteam-update = }}
'''Bah Bill Abuzar Mamadou''' (born 8 September 2001) is a Singaporean professional footballer who plays as a defender for Thai League 1 club Nakhon Ratchasima and the Singapore under-23 national team.
Primarily a centre-back, Bill is also capable of playing either as a full-back or midfielder. He is the son of former footballer Bah Mamadou.
==Club career == ===Lion City Sailors=== In 2019, Bill was promoted to the Home United senior team and played a total of 3 matches for the club for the 2019 season.
====Loan to Young Lions==== While serving the compulsory National Service, Bill joined the Young Lions on loan for two years from 2020 to 2021.<ref>{{cite web |title= Bill Mamadou joins Young Lions |url= https://spl.sg/bill-mamadou-joins-young-lions/|website=Singapore Premier League|date=18 October 2020|accessdate=14 June 2025}}</ref>
====Return to Lion City Sailors==== Bill returned to his parent club which is currently privatised and revamp as Lion City Sailors after his completion from National service commitments. He made his season debut against Tanjong Pagar United in a 7–0 at the Jalan Besar Stadium on 13 August 2022 for their second big-margin win for the season.<ref>{{cite web |title=Bill Mamadou – another substitute – also did his part with a superb intervention to deny Khairul Nizam |url=https://www.lioncitysailorsfc.sg/another-demolition-job-but-sailors-remain-focused-on-building-on-improvements/}}</ref> For the match against Albirex Niigata (S), Harris was suspended and Pedro was injured for the match, which resulted in Bill starting the 1st of many matches for the season.<ref>{{cite web |title=Out of form, depleted and on the brink, but Lion City Sailors vow to fight till the end ynwa |url=https://www.straitstimes.com/sport/football/football-out-of-form-depleted-and-on-the-brink-but-lion-city-sailors-vow-to-fight-till-the-end}}</ref>
====Loan back to Young Lions==== On 21 February 2025, it was announced that Bill would rejoin Young Lions on a second stint on loan for the remainder of the 2024–25 season to get more playing time.<ref>{{cite web |title= Bill Mamadou joins Young Lions on loan |url= https://www.lioncitysailorsfc.sg/bill-mamadou-joins-young-lions-on-loan/ |website=Lion City Sailors|date=21 February 2025|accessdate=14 June 2025}}</ref> Bill made a total of 11 appearances for the club, 8 in the league and 3 in the Singapore Cup.
===Nakhon Ratchasima=== Following the expiry of this contract with Lion City Sailors, Bill joined Thai League 1 side Nakhon Ratchasima on 14 June 2025.<ref>{{Cite web|url=https://www.ballthai.com/%E0%B8%99%E0%B8%84%E0%B8%A3%E0%B8%A3%E0%B8%B2%E0%B8%8A%E0%B8%AA%E0%B8%B5%E0%B8%A1%E0%B8%B2-%E0%B8%A1%E0%B8%B2%E0%B8%AA%E0%B8%94%E0%B9%89%E0%B8%B2%E0%B8%AF-%E0%B8%84%E0%B8%A7%E0%B9%89%E0%B8%B2-%E0%B8%81%E0%B8%AD%E0%B8%87%E0%B8%AB%E0%B8%A5%E0%B8%B1%E0%B8%87%E0%B8%94%E0%B8%B5%E0%B8%81%E0%B8%A3%E0%B8%B5%E0%B8%97%E0%B8%B5%E0%B8%A1%E0%B8%8A%E0%B8%B2%E0%B8%95%E0%B8%B4%E0%B8%AA%E0%B8%B4%E0%B8%87%E0%B8%84%E0%B9%82%E0%B8%9B%E0%B8%A3%E0%B9%8C-%E0%B8%A2%E0%B8%B9-23/|title=นครราชสีมา มาสด้าฯ คว้า กองหลังดีกรีทีมชาติสิงคโปร์ ยู-23|access-date=17 June 2025|date=14 June 2025|website=Ball Thai|language=th}}</ref>
== International career == Bill is eligible to represent Singapore or Mali due to his dad native origins. He represents Singapore Under-23 team in the 2023 Merlion Cup, 2023 SEA Games and the 2024 AFC U-23 Asian Cup qualification.
==Personal life == Bill is the son of former footballer and S.League legend, Bah Mamadou. He is of African descent through his father who was born in Mali. His dad formerly played for S.League clubs including Gombak United, Balestier Khalsa, and Woodlands Wellington.
==Career statistics==
===Club=== {{updated|match played 18 April 26}}<ref>{{Soccerway|bill-mamadou/619947|accessdate=14 January 2020}}</ref>
{| class="wikitable" style="text-align: center" |+ Appearances and goals by club, season and competition |- !rowspan="2"|Club !rowspan="2"|Season !colspan="3"|League !colspan="2"|National cup !colspan="2"|League cup !colspan="2"|Continental !colspan="2"|Other !colspan="2"|Total |- !Division!!Apps!!Goals!!Apps!!Goals!!Apps!!Goals!!Apps!!Goals!!Apps!!Goals!!Apps!!Goals |- | Home United |2019 ||Singapore Premier League |3||0||0||0||0||0||0||0|| colspan="2"|—||3||0 |- | rowspan="6" | Lion City Sailors |2020 | Singapore Premier League |0||0||0||0||0||0||0||0||colspan="2"|—||0||0 |- |2021 | Singapore Premier League |0||0||0||0||0||0||0||0||colspan="2"|—||0||0 |- |2022 |Singapore Premier League |7||0||1||0||0||0||0||0||colspan="2"|—||8||0 |- |2023 |Singapore Premier League |7||0||2||0||0||0||0||0||colspan="2"|—||9||0 |- |2024–25 |Singapore Premier League |5||0||0||0||0||0||2{{efn|name=ACL2|Appearance(s) in AFC Champions League Two}}||0||1{{efn|name=ACC|Appearance(s) in ASEAN Club Championship}}||0||8||0 |- ! colspan="2" |Total !19!!0!!3!!0!!0!!0!!2!!0!!1!!0!!25!!0 |- | rowspan="3" | Young Lions (loan) |2020 |Singapore Premier League |6||0||0||0||0||0||colspan="2"|—|| colspan="2"|—||6||0 |- |2021 |Singapore Premier League |2||0||0||0||0||0||colspan="2"|—|| colspan="2"|—||2||0 |- ! colspan=2 |Total !8!!0!!0!!0!!0!!0!!0!!0!!0!!0!!8!!0 |- |Young Lions (loan) |2024–25 |Singapore Premier League |8||0||3||0||0||0||colspan="2"|—||colspan="2"|—||11||0 |- |Nakhon Ratchasima |2025–26 |Thai League 1 |18||0||1||0||0||0||colspan="2"|—||colspan="2"|—||19||0 |- ! colspan="3" | Career total !56!!0!!7!!0!!0!!0!!2!!0!!1!!0!!62!!0 |}
'''Notes''' *<small>Young Lions are ineligible for qualification to AFC competitions in their respective leagues.</small> {{Reflist|group=lower-alpha}}
===International===
====U23 International caps==== {| class="wikitable" ! No !! Date !! Venue !! Opponent !! Result !! Competition |- | align=center|1 || 24 March 2023|| Jalan Besar Stadium, Jalan Besar, Singapore|| {{fbu|23|HKG}} || align=center|0–1 (lost) || Merlion Cup |- | align=center|2 || 26 March 2023|| Jalan Besar Stadium, Jalan Besar, Singapore|| {{fbu|23|CAM}} || align=center|1–2 (lost) || Merlion Cup |- | align=center|3 || 29 April 2023|| Prince Stadium, Phnom Penh, Cambodia|| {{fbu|23|THA}} || align=center|1–3 (lost) || 2023 SEA Games |- | align=center|4 || 3 May 2023|| Prince Stadium, Phnom Penh, Cambodia|| {{fbu|23|VIE}} || align=center|1–3 (lost) || 2023 SEA Games |- | align=center|5 || 6 Sept 2023|| Việt Trì Stadium, Phú Thọ, Vietnam|| {{fbu|23|YEM}} || align=center|0-3 (lost) || 2024 AFC U-23 Asian Cup qualification |- | align=center|6 || 9 Sept 2023|| Việt Trì Stadium, Phú Thọ, Vietnam|| {{fbu|23|Guam}} || align=center|1-1 (draw) || 2024 AFC U-23 Asian Cup qualification |- |}
== Honours ==
=== Club ===
==== Lion City Sailors ====
* Singapore Cup: 2023 * Singapore Community Shield: 2022, 2024
==References== {{reflist}}
{{Nakhon Ratchasima F.C. squad}}
{{DEFAULTSORT:Mamadou, Bill}} Category:Living people Category:2001 births Category:Singaporean men's footballers Category:Guinean men's footballers Category:Men's association football midfielders Category:Singapore Premier League players Category:Lion City Sailors FC players Category:Young Lions FC players Bill Mamadou Bill Mamadou Category:Singaporean expatriate men's footballers Category:Expatriate men's footballers in Thailand Category:Singaporean expatriate sportspeople in Thailand Category:21st-century Singaporean sportsmen Category:Singaporean people of Malian descent Category:Singapore men's youth international footballers Category:Footballers at the 2023 SEA Games Category:SEA Games competitors for Singapore Category:21st-century Guinean sportsmen