• Oleksandr Usyk gives up title as ‘present’ to pair
• Britons set to face off at Wembley on 21 September

Daniel Dubois promised to become the “king slayer” after it was confirmed he will face Anthony Joshua for the IBF heavyweight belt on 21 September.

The fight at Wembley was announced on Wednesday following the confirmation by current title holder Oleksandr Usyk that he will vacate the world title. The Ukrainian became the first heavyweight to hold the IBF, WBO, WBA and WBC belts when he defeated Tyson Fury in Saudi Arabia last month but 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.