Anthony Joshua is set for another shot at the IBF heavyweight title but Daniel Dubois hopes to become a "king slayer" when the pair meet at Wembley Stadium.

Oleksandr Usyk vacated the IBF heavyweight championship just five weeks after becoming the undisputed world heavyweight champion with his win over Tyson Fury, confirming his decision on X on Tuesday.

The all-British showdown was confirmed the following day as the duo prepare to battle at Wembley on September 21.

Joshua will bid to become a three-time world champion, while Dubois will appear in his first title fight after becoming the mandatory challenger for the IBF crown with his win over Filip Hrgovic this month.

The meeting will be Joshua's first at Wembley in three years, and Dubois hopes to bring his homecoming crashing down.

"That's just where I'm aiming for, to fight the best and be the best," Dubois said at Wednesday's press conference.

"AJ's been the king for a long time and on the night, I need to become a king slayer and that's my goal, that's the mission at hand.

"I'm learning more about myself as a fighter, as a person, coming out of the darkness and into the light, improving all round as a fighter and as an athlete. I'm up for this and ready to go."

Joshua has repeatedly been suggested as a potential opponent for Usyk or Fury, though says he will turn his attention solely on the upcoming Dubois bout.

"Congratulations to Daniel for winning his last fight," a measured Joshua said at the same press conference.

"I've been having Dubois on my mind for a while and he'll be on my mind for the next 12 weeks until I get my hand raised.

"The goal is just getting through a successful training camp, performing on the night and the shiny stuff comes at a later date."