Wladimir Klitschko takes big weight advantage into title match against David Haye . The Ukrainian heavyweight champion is the only man to have beaten both Vitali Klitschko, who was also a world champion, and Lennox Lewis, who won three titles in succession. Klitschko defends IBF and WBO crowns while Haye has WBA heavyweight title . The 30-year-old Haye will be two pounds heavier than for his last fight against fellow Briton Audley Harrison , while Klitschko is five pounds lighter than for his previous bout against Samuel Peter . Sell out crowd of over 50,000 for Saturday 's bout in Hamburg .
Wladimir Klitschko takes big weight advantage into title match against David Haye . The Ukrainian heavyweight champion is the only man to have beaten both Vitali Klitschko, who was also a world champion, and Lennox Lewis, who won three titles in succession. Klitschko defends IBF and WBO crowns while Haye has WBA heavyweight title . Sell out crowd of over 50,000 for Saturday 's bout in Hamburg .