David Haye won't be able to challenge Vitaly Klitschko for his WBC heavyweight title in June, but hopes to fight his brother, Wladimir, instead.

Haye and Vitaly Klitschko had agreed a June 20 fight in London, but the Ukrainian now has to make a mandatory defence against Juan Carlos Gomez on March 31.

Former world cruiserweight champion Haye, who won his first fight as a heavyweight against Monte Barrett in November, has switched his attention to IBF and WBO champion Wladimir Klitschko.

Haye's spokesman, Elliot Worsell, said yesterday that Wladimir's proposed defence of his own titles against Chris Arreola in March has not been finalised and that means he could take on Haye.

"It looks like it's all up to Wladimir," Worsell said. "David doesn't mind which Klitschko he fights and is quietly confident he'll now get Wladimir. We'll see what happens in the next week or so."