Anthony Joshua is asking for £20million and a guarantee to be the first opponent for the winner in order to allow Tyson Fury and Oleksandr Usyk to fight next.
Joshua is contractually obligated to a rematch with Usyk for the unified WBA, WBO and IBF world heavyweight titles, but a deal has been put towards Usyk and Fury for an undisputed title fight in the Middle East.
However, for that deal to be made, Joshua and Dillian Whyte, the mandatory challenger to Fury's WBC belt, would have to be paid significant sums to step aside.