United States cycling star Tyler Hamilton says he is definitely retiring from the sport after testing positive for banned substances for a second time. The 38-year-old admitted using an anti-depressant which contained the steroid DHEA. He was banned for two years in 2004 after an illegal blood transfusion and says he could not face having to sit out another ban.
Hamilton's top years were 2003 and 2004. In 2003, he won races including the Liège-Bastogne-Liège and, in 2004, came fourth in the Tour de France. He went on to win gold in the time trial at the 2004 Athens Olympic Games.
Source: Radio Netherlands Worlwide/ photo by Matt Benassi