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 face causing a red mark to be left. The next day Chisora spat water over the face of Vitali's brother Wladimir. Vitali won the majority of the rounds boxing a disciplined fight with changing angles and superior footwork. Chisora, constantly coming forward delivering punishing body shots, failed to wear down the older man. The scores were: 118–110, 118–110, and 119–111. The next day Vitali visited a hospital to check his shoulder, claiming he injured it in the fight. A doctor confirmed a ligament tear was suffered in his left shoulder. Klitschko said he "suddenly lost strength in the left hand"