Lance Armstrong

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Cycling icon Lance Armstrong stopped his fight against doping allegations and was stripped of his Tour de France titles. (Associated Press)

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**FILE** Lance Armstrong speaks Aug. 24, 2009, during the opening session of the Livestrong Global Cancer Summit in Dublin, Ireland. (Associated Press)

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**FILE** Lance Armstrong pauses during an interview in Austin, Texas, on Feb. 15, 2011. (Associated Press)

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Seven-time Tour de France cycling champion Lance Armstrong of the United States is pictured during a stop on the third day of training with team Astana in Adelaide, Australia, on Jan. 14, 2009. UCI, cycling's governing body, agreed on Monday, Oct. 22, 2012, to strip Armstrong of his seven Tour de France titles. (AP Photo/Aman Sharma, file)

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Cyclist Lance Armstrong holds the winner's trophy after claiming his seventh straight Tour de France race during ceremonies on the Champs-Elysees in Paris on July 24, 2005, after the 21st and final stage of the race between Corbeil-Essonnes, south of Paris, and the French capital. UCI, the cycling governing body, agreed on Monday, Oct. 22, 2012, to strip Armstrong of his seven Tour de France titles. (AP Photo/Bernard Papon, Pool)

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Cyclist Lance Armstrong speaks at the Livestrong Challenge Austin bike ride on Sunday, Oct. 21, 2012, in Austin, Texas. Armstrong greeted about 4,300 cyclists at his Livestrong charity's fundraiser, then retreated into privacy as cycling officials got set to announce if they will appeal his lifetime ban and loss of seven Tour de France titles ordered by the U.S. Anti-Doping Agency. (AP Photo/Michael Thomas)

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Cyclist Lance Armstrong stands onstage during the 15th anniversary celebration for Livestrong, his cancer-fighting charity, on Friday, Oct. 19, 2012, in Austin, Texas. Joining him are members of Livestrong's staff, many of whom are cancer survivors. Armstrong said he has been through a "difficult couple of weeks" and urged supporters of the charity to stand behind its mission. "The mission is bigger than me. It's bigger than any individual," Armstrong said in opening remarks at the celebration. (AP Photo/Livestrong, Elizabeth Kreutz)

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Pat McQuaid, president of the Union Cycliste Internationale, presents the position of the UCI regarding the decision from the U.S. Anti-Doping Agency in the case of Lance Armstrong, during a press conference in Geneva on Monday, Oct. 22, 2012. UCI, cycling's governing body, has agreed to strip Armstrong of his seven Tour de France titles and ban him for life. (AP Photo/Keystone, Salvatore Di Nolfi)

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U.S. cyclist Lance Armstrong is interviewed in Austin, Texas, on Friday, Feb. 15, 2011. UCI, the cycling governing body, agreed on Monday, Oct. 22, 2012, to strip Armstrong of his seven Tour de France titles. (AP Photo/Thao Nguyen)

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Lance Armstrong’s seven consecutive victories in the Tour de France, from 1999-2005, may be vacated. (Associated Press)

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In this July 24, 2005 file photo, Lance Armstrong wears a Nike logo on his jersey prior to the start of the 21st and final stage of the Tour de france cycling race, between Corbeil-Essonnes, south of Paris, and the French capital. Armstrong stepped down as chairman of his Livestrong cancer-fighting charity and Nike severed ties with him as fallout from the doping scandal swirling around the famed cyclist escalated Wednesday, Oct. 17, 2012. (AP Photo/Peter Dejong, File)

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Six-time Tour de France winner Lance Armstrong of Austin, Texas, right, wearing the overall leader's yellow jersey, looks at his girlfriend, singer Sheryl Crow, after the Discovery Channel cycling team won the fourth stage of the Tour de France cycling race, a 67.5-kilometer (41.95-mile) team time trial between Tours and Blois, western France, Tuesday, July 5, 2005. Armstrong took the lead from compatriot David Zabriskie on Tuesday. (AP Photo/Christophe Ena)