Speaking to Sky Sports in the UK, Matchroom boss Hearn revealed that negotiations for a showdown between Joshua – the IBF, WBA, WBO and IBO champion – and Wilder, the WBC titleholder, for all the belts had broken down in recent weeks, with the American's team not responding to his messages.
Wilder is coming off a highly controversial draw with Fury in Los Angeles last December, which most observers felt he lost.
