Athletes and the taint of doping

Floyd Landis during Stage 17 of the Tour de France
Floyd Landis of the USA and Phonak in action during Stage 17 of the 93rd Tour de France between Saint-Jean-de-Maurienne and Morzine-Avoriaz on July 20, 2006 in Morzine-Avoriaz, France.
Photo by Friedemann Vogel/Bongarts/Getty Images