Timeline: Lance Armstrong’s Tough Road

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Retirement and USADA Investigation

Armstrong announced his retirement for a second time in February 2011. U.S. federal prosecutors drop criminal charges against him in February 2012, but the U.S. Anti-Doping Agency (USADA) officially charged Armstrong with doping and trafficking of drugs in June, banning him from competing in cycling and triathlon. In August, Armstrong said he will not fight USADA’s charges.

(Photo: Gail Oskin/Getty Images)