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
Klitschko brothers Vitali Klitschko was described as being the best of his time, and George Foreman stated that he has the best straight left in the division. As heavyweight champion, Wladimir was unbeaten for over a decade. Wladimir Klitschko is considered to be one of the greatest heavyweight champions of all time, and amongst the hardest punching knockout artists in history. He has been heavily praised for his fundamental approach to boxing, during which he nullifies opponents with his jab, before knocking opponents out with a straight right. His reign as champion is second only to the reign of Joe Louis. While