Heavyweight Anthony Joshua has begun talks to fight fellow Briton Daniel Dubois in September.Joshua, 34, is expected to fight at Wembley Stadium on 21 September and was ringside to watch Dubois beat Filip Hrgovic last Saturday in Saudi Arabia.

Dubois’ promoter Frank Warren confirmed talks were under way.

Dubois, 26, stopped Hrgovic in their IBF ‘interim’ title fight, putting himself in prime position to be called as the next mandatory challenger to Oleksandr Usyk.

Ukrainian Usyk has requested his IBF belt not be stripped so the undisputed title can remain on the line when he fights Tyson Fury in their rematch on 21 December.