The heavyweight debut of unbeaten former undisputed cruiserweight world champion Oleksandr Usyk, whose May 25 heavyweight debut against Carlos Takam was canceled because Usyk suffered a biceps injury, will take place either Oct. 12 or Oct. 19, likely at Wintrust Arena in Chicago, Matchroom Boxing promoter Eddie Hearn told ESPN on Friday. Hearn said Usyk will probably still face Takam. Usyk (16-0, 12 KOs), 32, of Ukraine, has to win to maintain his mandatory status for the winner of the heavyweight world title rematch between Andy Ruiz Jr. and Anthony Joshua.