premise: Alberto Contador initially lost the Tour de France.
hypothesis: Alberto Contador . He was the winner of the 2007 Tour de France with the team . He initially also won the 2010 Tour de France with this team , and the 2011 Giro d'Italia with team Saxo Bank-SunGard , only to be stripped of these titles later having been found guilty of a doping offence . After being widely expected to lose his tenuous lead in the 2007 Tour de France in that race 's final individual time trial , Contador has become a more accomplished time trialist , with several victories in the discipline . In September 2010 , Contador announced that he had tested positive for clenbuterol in a control taken during that year 's Tour de France , in which he finished as winner , but although he was suspended during an investigation , A review by the Court of Arbitration for Sport initially set for June 2011 was later deferred several times until February 2012 , when the CAS decided that Contador be stripped of the results obtained in the 2010 Tour de France and later , which also caused him to lose his 2011 Giro d'Italia victory .