Lance Armstrong became an icon in the cycling world in 2000s, making the Tour de France a major spectator sport in America. In October 2012, he stepped down as chairman of his Livestrong cancer charity after saying he would no longer fight doping allegations and being stripped of his seven Tour titles.
Lance Armstrong Through the Years
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August 25, 2005: Armstrong appears on CNN's "Larry King Live" with Bob Costas to discuss recent allegations of doping.
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November 5, 2006: Lance Armstrong (picured in green) runs the New York City Marathon, his first.
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September 2008: Armstrong announces he is ending a three-year cycling retirement and aims for an eighth Tour de France victory.
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January 20, 2009: Armstrong races in the Tour Down Under in Adelaide, his first since resuming his professional cycling career.