Unified champion Oleksandr Usyk is set to walk away from talks with Tyson Fury over an undisputed heavyweight fight.
The bout was pencilled in for 29 April at Wembley Stadium and Usyk had agreed to a 70/30 split in Fury's favour.
But the terms for an immediate rematch have proved a sticking point during negotiations.
WBC champion Fury, 34, was against a rematch clause, while Team Usyk insist they did everything within their power to make the fight happen.
Over the weekend Team Fury had thought the deal was done and were even making preparations for an official statement.
Fury's co-promoter Frank Warren teased on Twitter on Sunday that news was imminent, but Monday saw the two sides again clash over the prospect of a rematch.
The bout was pencilled in for 29 April at Wembley Stadium and Usyk had agreed to a 70/30 split in Fury's favour.
But the terms for an immediate rematch have proved a sticking point during negotiations.
WBC champion Fury, 34, was against a rematch clause, while Team Usyk insist they did everything within their power to make the fight happen.
Over the weekend Team Fury had thought the deal was done and were even making preparations for an official statement.
Fury's co-promoter Frank Warren teased on Twitter on Sunday that news was imminent, but Monday saw the two sides again clash over the prospect of a rematch.