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 Heavyweight Champions in history. Despite having a four-year hiatus from the sport, Vitali has proven to be a remarkably effective and dominant Heavyweight Champion once again. Alongside his brother Wladimir, he also fights on for their shared ambition of holding all four Heavyweight Championship belts together, an ambition that was realised on 2 July 2011 when brother Wladimir defeated David Haye to win the WBA Heavyweight Championship. In January 2012, he was awarded WBC Fighter of the Year for 2011. Klitschko was in negotiations for a possible bout with former WBA Heavyweight title holder David Haye on 3 March 2012.