The postponed rematch between David Haye and Tony Bellew will take place on May 5, promoter Eddie Hearn has announced.
Bellew beat Haye in their grudge match in March and the two had been due to face off again this month, only for Haye to suffer a bicep injury.
It was a cruel blow for the former world heavyweight champion, who was hindered in the first fight by a ruptured Achilles.
His bicep has also required surgery but he is now set to face the Liverpudlian at London's O2 next spring.
David Haye has been forced to postpone his rematch with Tony Bellew after tearing his biceps during training.
The injury-prone heavyweight, 37, has withdrawn from the match-up scheduled for December 17 at London's O2 Arena but is not considering retirement and hopes to instead fight his rival on March 24 or May 5.
"I am devastated to announce my much-anticipated rematch against Tony Bellew has been postponed until Match 24 or May 5, subject to scheduling," Haye said.
"Despite the recent injury rumours, I was in perfect condition with an incredibly strong training camp, weighing lighter than I have for more than five years, I couldn't wait to get back in the ring. I was ready to rewrite the ending of the Haye-Bellew saga."
What Haye described as a "freak accident" occurred last Thursday, and led to a procedure on Monday afternoon that he insists has been successful.
"After a freak accident during a stair conditioning session, which I've done with no incident hundreds of times, I lost my footing and slipped," he said.
"So I instinctively grabbed the banister to stop myself toppling down the stairwell, in doing so I somehow managed to damage my biceps in the process.
"I underwent a procedure to repair it; this was pretty straightforward and my doctor and physiotherapist have no doubt that not only will I make a full recovery but will be able to be back in the gym to start my arm rehabilitation in two weeks.
"I would like to apologise to Tony, his family and his training team, as well as all our fans who have been left disappointed."
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Heavyweights David Haye and Tony Bellew will fight in London on March 4.
The pair, who have had an on-going war of words, will clash after they had to be separated by security following Bellew's defence of his WBC World Cruiserweight title against BJ Flores in October.
They will fight at the O2 in London and Haye took aim at Bellew, who was in last year's Rocky spin-off film Creed, and insisted he is "delusional" about his victory chances.
David Haye has donated almost £100,000 to Nick Blackwell to help the former British middleweight champion prepare for retirement.
Blackwell, 25, was placed into an induced coma after suffering a bleed on the skull in March’s fight with Chris Eubank Jnr.
Haye pledged to donate 10 per cent of ticket sales from his May fight with Arnold Gjergjaj.
"It's amazing, he's been so good to me," Blackwell said. "I didn't know him before at all, but he's texting me every other day, seeing how I am.”
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Former world heavyweight champion David Haye has announced he is to return to the ring in January with a bout against Australian Mark de Mori at London's O2 Arena.
The 35-year-old Briton held a press conference at the venue on Tuesday to deliver the news of what is set to be his first fight since he beat compatriot Dereck Chisora in July 2012.
In 2013 Haye withdrew from proposed clashes against Manuel Charr and Tyson Fury due to injuries, with surgeons advising him following a shoulder operation on the latter occasion to seriously consider retiring.
But he refused to give up on a comeback which has now been scheduled for January 16th and will see him take on a man two years his junior in De Mori.