Fight Island finally debuted with three title fights decided at UFC 251 and only one new champion.
Kamaru Usman (17-1, 7 KOs) retained his welterweight title in the main event against Jorge Masvidal, while Alexander Volkanovski defended the featherweight title against Max Holloway.
Petr Yan defeated Jose Aldo to claim the undisputed bantamweight championship.
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Masvidal was fighting on short notice, filling in for Gilbert Burns after he tested positive for COVID-19 on July 3.