LONDON — David Haye has pulled out of his IBF and WBO heavyweight title fight against Wladimir Klitschko because of an injury.

The British fighter had been scheduled to challenge Klitschko before a sellout crowd of more than 60,000 at Schalke's football stadium in Gelsenkirchen, Germany, on June 20.

Haye's camp said Wednesday he sustained an injury in training and had to pull out. The nature of the injury was not immediately known.

Haye is 22-1 and has recently moved up from cruiserweight. Klitschko, considered the best of the heavyweights, is 52-3.

At recent news conferences promoting the fight, Haye wore T-shirts depicting him standing in the ring with the dismembered heads of Klitschko and his brother, WBC champion Vitali.