Vitali Klitschko the Ukrainian presidential opposition movement. Klitschko knocked Williams down in the 1st, 3rd, 7th, and 8th rounds before the fight was stopped. Immediately afterward, Klitschko dedicated his victory to democracy in his native Ukraine and also to the Ukrainian presidential candidate Viktor Yushchenko, whom he supported in 26 December 2004, election revote. On 9 November 2005, Klitschko announced his retirement from professional boxing and vacated his title. He had been training to fight Hasim Rahman, however, nine days before the fight, he injured his leg while sparring. He snapped his anterior cruciate ligament, which with surgery would take up to
Wladimir Klitschko out of the fight due to not being fully recovered from a torn abdominal muscle. On 5 March, it was instead announced that the highly anticipated fight against David Haye would take place on 2 July 2011. The fight was contingent on Klitschko's recovery from a torn abdominal muscle injury. The contract was written so that if Klitschko was not fully healed, then Haye would fight his brother, Vitali. Klitschko fought David Haye in a heavyweight unification fight for the WBA (Super), WBO, IBF, IBO and "The Ring" Heavyweight titles. The fight took place at the Imtech Arena, Hamburg, Germany