Wladimir Klitschko Universum Box-Promotion in Hamburg under the tutelage of Fritz Sdunek, often being featured on fight cards alongside his elder brother Vitali. After building an undefeated record of 24–0 with 22 KOs, he suffered his first loss to 24–13–1 Ross Puritty, in what was Klitschko's first and only professional fight in Ukraine. Puritty forced Klitschko, who had at that time not gone beyond 8 rounds, to punch himself out. Klitschko began to be overwhelmed in the 10th round and went down twice but was allowed to continue. At the start of the 11th round, with Puritty continuing to land hard punches,
Vitali Klitschko Kramnik and the two have played, with Kramnik always winning. Vitali has commented that "chess is similar to boxing. You need to develop a strategy, and you need to think two or three steps ahead about what your opponent is doing. You have to be smart. But what's the difference between chess and boxing? In chess, nobody is an expert, but everybody plays. In boxing everybody is an expert, but nobody fights." Vitali and his brother also have been involved in charitable activities dedicated to supporting the needs of schools, churches and children. In 2002, the Klitschko brothers announced that