The 37-year-old Ruiz, who has lost twice to Valuev, stopped Adnan Serin on the undercard on Saturday.

BBC: British fans inspired win - Haye

Haye revealed that he broke his right hand in his victory over Valuev, while Ruiz suffered a nasty cut during his win against Adnan Serin on Saturday's undercard in Germany.

BBC: Haye & Klitschko target showdown