Seven-time Tour de France winner Lance Armstrong awaits the start of the 2010 Cape Argus Cycle Tour in Cape Town in this March 14, 2010 file photo. A spate of troubling stories in the first quarter of 2013 show an altogether darker and more disturbing side to the glamorous, multi-billion-dollar global sport industry. In January, American cyclist Armstrong admitted in a television interview that he had doped before each of his record seven Tour de... more 

Seven-time Tour de France winner Lance Armstrong awaits the start of the 2010 Cape Argus Cycle Tour in Cape Town in this March 14, 2010 file photo. A spate of troubling stories in the first quarter of 2013 show an altogether darker and more disturbing side to the glamorous, multi-billion-dollar global sport industry. In January, American cyclist Armstrong admitted in a television interview that he had doped before each of his record seven Tour de France victories. His confession after years of denial followed the United States Anti-Doping Agency's (USADA) decision to strip him of the title and accuse him of being at the centre of the "most sophisticated, professionalised and successful doping programme that sport has ever seen". To match Feature DOPING/ REUTERS/Mike Hutchings/Files (SOUTH AFRICA - Tags: SPORT CYCLING DRUGS SOCIETY CRIME LAW) less