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 and was forced to only use his right. The injury was believed to have happened in the second or third round. Klitschko's trainer, Fritz Zdunek, believes this is the same kind of injury Vitali suffered in his fight with Byrd. At the post-fight press conference, a brawl ensued between Haye and Chisora. After the altercation, Chisora challenged Haye to a fight in the ring and said, "I am going to shoot David Haye." Chisora was later arrested at a German airport along with his coach, Don Charles. His comments and actions were later condemned by Frank Warren, his promoter, and