Vitali Klitschko would run in the 2012 Kiev mayoral election. During the 2012 Ukrainian parliamentary election, Klitschko was elected (he was top candidate on UDAR's party list) into the Ukrainian parliament; when his party won 40 seats. Klitschko was chosen the leader of the party's faction in Parliament. Klitschko announced on 24 October 2013 that he intended to take part in the next Ukrainian presidential election that was then set for 2015. Experts and lawyers then argued that it was unclear if Klitschko could take part in these elections. Under Ukrainian law, a presidential candidate must have had his residence in Ukraine
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