Tyson Fury has given Anthony Joshua until Monday to sign the contract for their heavyweight world title fight.
Fury and Joshua appeared to be on a collision course for a showdown in Cardiff on December 3 when a contract was sent to the challenger last week. But Joshua's promoter Eddie Hearn has admitted the paperwork was not in order and has since been revising it with his opposite number George Warren.
Fury has taken matters into his own hands, however, and insisted he will walk away from the deal if he does not have a signed contract within 48 hours. "I was optimistic about three weeks but it shouldn't be taking this long to sign a contract," he told BT Sport.