By Mark Vester

David Haye's mystery injury has been revealed. The British says that he injured his back and that was the reason he withdrew on Wednesday from a June 20 showdown with IBF/WBO heavyweight champion Wladimir Klitschko. He hopes the fight can be rescheduled to a date in July.

"I'm sorry to disappoint all my fans across the world and I hope that once I have had the sufficient treatment, I will be able to start training again and we can get the fight on as soon as possible," Haye said. "I know this is the fight the fans want and I will do everything to make sure it happens."

Haye's manager, Adam Booth, said on Thursday that Haye was returning to Britain for treatment and hoped a new fight date would be arranged.

"It looks like there will be only a three-week delay from the original fight date, which hopefully means that Wladimir will only postpone the fight, rather than cancel it," Booth said in statement.

Klitschko's manager, Bernd Boente, had previously said there was a chance the fight could be moved to late July. There has been no word if Klitschko plans to cancel the June 20th date where over 60,000 fans are planning to attend in Germany.

"Contractually, we have to first of all see how bad the injury is," he told Setanta Sports News. "If there is just a small postponement, maybe we could do the fight four weeks later. We have put a lot of training into the fight but we will have to see."

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