David Haye has tweeted a picture of his injured shoulder which could force him into retirement.
Haye, 33, underwent surgery on Thursday to reconstruct his right shoulder which forced him to pull out of a scheduled fight with Tyson Fury, who reacted furiously to the news on Twitter.
The former world heavyweight champion said the operation was a "crushing blow" to his plans.
More top news
What's your opinion on parents being told by headteachers they will be reported to police if they let children play over 18 computer games
Pilots with a history of depression should not be banned from flying, a leading British psychiatrist has said.
Parents have been told by teachers they'll be reported to police and social services if children to play Call of Duty or Grand Theft Auto