World heavyweight champion Tyson Fury says he has retired from boxing in an expletive-laden message on Twitter.
The Briton, 28, withdrew from a rematch with Ukrainian Wladimir Klitschko, scheduled for 29 October, because of reported mental health issues.
Fury, who holds the WBA and WBO titles,faces a hearing into a charge for an alleged doping violation in November.
“Boxing is the saddest thing I ever took part in” read his tweet, adding: “I’m the greatest, and also retired.” Fury had been scheduled to earn the biggest purse of his career for his second fight with Klitschko at the Manchester Arena this month. He postponed the original rematch against the Ukrainian, which was scheduled for July, after injuring an ankle in training.
He has been given 10 days by the World Boxing Organisation to provide detailed reasons for his second withdrawal.
Fury is under investigation, having been charged by the UK Anti-Doping Agency (Ukad) in June, after traces of a banned substance were allegedly found in a urine sample.
Boxing: Tyson Fury Announces Retirement