Klitschko brothers represented Ukraine at the 1996 Olympics, winning a gold medal in the super-heavyweight division. In 1996, when still an amateur, Vitali Klitschko tested positive for a banned substance and was removed from the Ukrainian boxing team. In June 1999, Vitali Klitschko won the WBO Heavyweight title from Herbie Hide via second-round knockout. He successfully defended the title twice before losing it to Chris Byrd. Six months later, younger brother Wladimir dethroned Byrd via lopsided points decision. He registered five successful title defenses, all by TKO until suffering an upset TKO loss to Corrie Sanders in March 2003. Vitali Klitschko lost
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