Tyson Fury's promoter Frank Warren insists Oleksandr Usyk's demand for a rematch clause caused the rivals' fight to collapse.
The 'Gypsy King' was set to meet Usyk for the undisputed heavyweight titles on April 29 at the Wembley Stadium, and the pair were closing in on an agreement after months of negotiations. But there were several stumbling blocks, with Fury demanding the purse was split 70/30 in his favour.
Usyk accepted the demand and it appeared the fight would be on, before Fury demanded that there was no rematch clause on the unified champion's side. After a period of silence it appeared that the WBC champion had entered training camp for the fight and the remaining issues were ironed out.