Lance Armstrong, of Austin rides down the Champs Elysees avenue past U.S. flags during the 20th and last stage of the Tour de France in 2004. Armstrong is set to lose his record seven Tour de France titles after the U.S. Anti-Doping Agency published a 1,000-page report outlining his alleged drug use.
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Lance Armstrong arrives to open the Livestrong Global Cancer Summit in Dublin, Ireland. Armstrong said Wednesday, Oct. 17, 2012, that he is stepping down as chairman of his Livestrong cancer-fighting charity so the group can focus on its mission.
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Armstrong reacts as he crosses the finish line to win the Tour de France cycling race in 2004. Armstrong has always denied he took banned substances during his career but decided not to challenge the USADA charges against him.
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Tour de France winner Lance Armstrong celebrates in 2002 after the final stage of race in Paris.
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Lance Armstrong prepares for the final stage of the Tour of California cycling race in 2009.
Marcio Jose Sanchez/AP
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Lance Armstrong heads out with the pack to take part in the Power of Four mountain bicycle race in Snowmass Village, Colo. on Aug. 25, 2012. The race was Armstrong's first public appearance since the U.S. Anti-Doping Association stripped him of his seven Tour de France championships and banned him for life from the sport.
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Armstrong undergoes medical examinations ahead of the Tour de France cycling race in Luxembourg.
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Armstrong walks out of the Tour de France's anti-doping control bus after the 16th stage of the Tour de France cycling race in 2002.
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Lance Armstrong talks to the media after the 2011 Xterra Nationals triathlon near Ogden, Utah.
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Armstrong prior to the start of the third stage of the Tour de France cycling race in Wanze, Belgium.