Anthony Joshua will fight Daniel Dubois at Wembley on 21 September for the IBF heavyweight belt, following Oleksandr Usyk's announcement that he will vacate the world title.
Usyk became the first heavyweight to hold the IBF, WBO, WBA and WBC belts when he beat Tyson Fury in Saudi Arabia last month.
Dubois is the IBF's mandatory challenger and it was announced on Wednesday that he will go up against fellow Briton Joshua after the undisputed world heavyweight champion Usyk confirmed he was giving up the crown.
"Anthony and Daniel, listen. I know the IBF title is important to you. It is my present to you on 21 September," Usyk said in a video posted on social media on Tuesday.
Usyk was set to be stripped of the IBF title, with the body stipulating he must face its mandatory challenger Dubois in order to retain it.
Meanwhile Belfast's world champion Anthony Cacace will defend his IBF and IBO super featherweight titles against Josh Warrington on the undercard.
Cacace won the titles against Joe Cordina earlier in the year and will enjoy a career-high payday against the former two-time champion.
