Lance Armstrong

FILE - In this July 24, 2005 file photo, Lance Armstrong, of Austin, Texas, carries the United States flag during a victory parade on the Champs Elysees avenue in Paris, after winning his seventh straight Tour de France cycling race. In 2012, Armstrong decided to give up the battle against doping charges, saying "enough is enough" but acknowledging no wrongdoing. The move began his swift fall from being perhaps the nation's best-known cancer-fighting hero, and though he maintains he was victimized by a "witch hunt" he was still stripped of all seven of his Tour de France victories. (AP Photo/Peter Dejong, File)