The undisputed world heavyweight champion, Oleksandr Usyk, has confirmed he will vacate his IBF title, clearing the way for Daniel Dubois and Anthony Joshua to fight for it in September. The Ukrainian became the first heavyweight to hold the IBF, WBO, WBA and WBC belts when he beat Tyson Fury in Saudi Arabia last month – but has been forced to relinquish one of the belts.
With Usyk now contracted to a rematch with Fury, he is not in a position to defend the IBF crown against Dubois, who is the interim champion and mandatory challenger after stopping Filip Hrgovic in Riyadh this month.
