# Mandatory challenger

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{{Short description|Opponent who the reigning champion must fight or lose their title}}
{{Use mdy dates|date=May 2024}}
In [professional boxing](/source/professional_boxing) and some other combat sports, a '''mandatory challenger''' is an opponent whom a champion must either fight (in a '''mandatory defence''') or be forced to vacate their title as champion. The opposite of a mandatory defence is a ''voluntary'' defence, against an opponent who might offer greater revenue potential than a mandatory challenger.<ref>{{Cite web |url=https://blog.betway.com/boxing/boxing-titles-explained-how-do-championship-belts-work/ |title=Boxing titles explained: How do championship belts work? |work=[Betway Insider](/source/Betway) |url-status=live |archive-url=https://web.archive.org/web/20240525035223/https://blog.betway.com/boxing/boxing-titles-explained-how-do-championship-belts-work/ |archive-date=May 25, 2024 |access-date=May 25, 2024}}</ref>

Mandatory challengers are designated by the champion's sanctioning body; in boxing, the major sanctioning bodies are the [WBA](/source/World_Boxing_Association), [WBC](/source/World_Boxing_Council), [IBF](/source/IBF) and [WBO](/source/WBO). The sanctioning bodies often order eliminators between top-ranked contenders to decide who will receive the mandatory challenger status. If the champion vacates the belt, the mandatory challenger is paired against another challenger for the vacant belt. Due to boxing politics, the champion of one sanctioning body is excluded from the rankings of rival sanctioning bodies, so [unification](/source/Unified_champion) fights cannot be mandatory defences. Conversely, mandatory challengers may be forced to wait for a title shot if the champion pursues a unification bout with a champion of a different sanctioning body, as a unification fight supersedes a mandatory defence.<ref>{{Cite web|url=https://www.espn.com/boxing/story/_/id/20354699/boxing-not-sweet-science-unification-bouts-boxing |title=The not-so-sweet science of unification bouts |date=August 15, 2017 |last=Collins |first=Nigel |author-link=Nigel Collins (writer) |work=[ESPN](/source/ESPN) |url-status=live |archive-url=https://web.archive.org/web/20240525035339/https://www.espn.com/boxing/story/_/id/20354699/boxing-not-sweet-science-unification-bouts-boxing |archive-date=May 25, 2024 |access-date=May 25, 2024}}</ref>

== See also ==
*[Interim championship](/source/Interim_championship)

== References ==
{{reflist}}

== External links ==
*[https://www.wbaboxing.com/wp-content/uploads/2015/06/WBA-Rules-adopted-in-Bulgaria-6-11-15.pdf WBA regulations on mandatory challengers]
*[https://wbcboxing.com/wbceng/Rules/WBCRulesandRegulationsJanuary2014.pdf WBC regulations on mandatory challengers] 
*[https://www.ibfusbaregistration.com/ibfusba_02APR2014/images/pdfs/FemaleUSBAICRegionalFinalDraft405.pdf IBF regulations on mandatory challengers]
*[https://www.wboboxing.com/regulations/ WBO regulations on mandatory challengers]

Category:Boxing terminology
Category:Boxing champions

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Adapted from the Wikipedia article [Mandatory challenger](https://en.wikipedia.org/wiki/Mandatory_challenger) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Mandatory_challenger?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.