Lance Armstrong's Doping Drama in 5 Clicks

See how multiple allegations got his Tour de France titles revoked

3. A BETRAYAL

After admitting his own usage of performance-enhancing drugs and receiving a two-year ban from the sport, Armstrong's teammate Floyd Landis alleges in May 2010 that the champion also doped and encouraged the practice among his teammates, leading to a criminal investigation by the U.S. Justice Department. Though Armstrong was again cleared of any wrong-doing, the U.S. Anti-Doping Agency brings formal charges against him in June 2012, which the cyclist deems "baseless" and "motivated by spite."