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. Odlanier Solís commissioner for the fight was the Bund Deutscher Berufsboxer and Tom Loeffler (K2 Promotions) was the promoter. Vitali Klitschko defeated Odlanier Solis in the first round. Solis went down near the end of the opening round, getting hit by a right hook to the temple. He immediately began grabbing his right knee upon attempting to get to his feet. He was able to make it to his feet. At that, the referee waved an end to the bout. After the fight, Solis was brought to Cologne's University Hospital, where it was confirmed that Solis suffered from a legitimate and serious