DOPING IN SPORTFive athletes who have failed drugs testsFollowing Maria Sharapova's admission yesterday that shetested positive for a banned substance, we look back at other athletes who were caught doping.AStvActualizado a 8 de marzo de 2016 13:39 CETEtiquetado en:María SharapovaLance ArmstrongBen JohnsonMarion JonesAlex RodriguezDrug test