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 vs. Dereck Chisora Klitschko his most competitive fight since his defeat to Lennox Lewis in 2003. Chisora also became only the fourth man (after Tino Hoffmann, Kevin Johnson and Shannon Briggs), to take Klitschko the full twelve round distance. In the post match press conference, Chisora was involved in a controversial confrontation with fellow British boxer David Haye, which subsequently paved the way for the pair's own grudge match later in the year. Vitali Klitschko vs. Dereck Chisora Vitali Klitschko vs. Dereck Chisora billed as Showdown in Munich was a heavyweight championship fight for the WBC title. The bout took place at the