Lance Armstrong pauses during an interview in Austin, Texas on Feb. 15, 2011. The Justice Department laid out its case in a lawsuit against Lance Armstrong on Tuesday, Apriil 23, 2013 saying the cyclist violated his contract with the U.S. Postal Service and was "unjustly enriched" while cheating to win the Tour de France.
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Cyclist Lance Armstrong addresses participants at The LIVESTRONG Challenge Ride at the Palmer Events Center on October 21 in Austin, Texas. More than 4,000 cyclists participated in the charity ride supporting cancer survivors.
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Lance Armstrong waves after receiving the bronze medal in the men's individual time trials at the 2000 Summer Olympics cycling road course in Sydney, Australia, Sept. 30, 2000.
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Lance Armstrong for a training session during the second of the two rest days of the 2010 Tour de France cycling race in Pau, France, July 21, 2010.
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Lance Armstrong (left) and cyclists riding stage 6 of The Tour Down Under, 2010.
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Lance Armstrong rides after crashing in the second stage of the 2010 Tour de France cycling race, July 5, 2010.
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Lance Armstrong cycles alongside teammate George Hincapie during the 19th stage of the 92nd Tour de France, July 22, 2005.
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Lance Armstrong rides in the 2005 Tour de France, July 24, 2005.
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Lance Armstrong signals seven for his seventh straight win in the Tour de France cycling race, at the start of the 21st and final stage of the race between Corbeil-Essonnes, south of Paris, and the French capital.
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Lance Armstrong heads to the start of stage 17 of the Tour de France in Pau, France, July 22, 2010.
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Lance Armstrong of the USA and Astana prepares to train with his team in preparation for 2009 Tour de France, July 2, 2009 in Monaco.
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Lance Armstrong rides in a breakaway during stage 16 of the Tour de France on July 20, 2010 in Pau, France
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Lance Armstrong in action on stage 18 of the 2009 Tour de Franc in Annecy, France, July 23, 2009.
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Service leader Lance Armstrong puts on the overall leader's yellow jersey after the 6th stage of the 55th Criterium du Dauphine Libere cycling race on June 14, 2003.
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FILE - In this May 5, 2009 file photo, Lance Armstrong speaks during a press conference following a meeting with Italian Foreign Minister Franco Frattini, in Rome.
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Cyclist Lance Armstrong is interviewed by Oprah Winfrey in Austin in this Jan. 14, 2013 handout photo.
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American Lance Armstrong with team RadioShack arrives over the finish along the 213km stage three of the Tour de France on July 6, 2010 in Arenberg, France.
Bas Czerwinski / AP
Lance Armstrong leads the breakaway group as they climb towards Tourmalet pass during the 16th stage of the Tour de France, July 20, 2010.
Stefan Wermuth / Reuters
A women holds a poster of Lance Armstrong before the start of the second stage of the Tour of Ireland cycling race in Clonmel, Aug. 22, 2009.
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Lance Armstrong, riding for Team RadioShack, crosses the finish line of the 196-km Stage 13 of the Tour de France on July 17, 2010, in Revel
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Lance Armstrong
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Lance Armstrong at a news conference at the National Press Club in Washington.
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In this handout photo provided by the Oprah Winfrey Network, Oprah Winfrey (not pictured) speaks with Lance Armstrong during an interview on Jan. 14, 2013 in Austin.
Participants at a Lance Armstrong LIVESTRONG Challenge in Philadelphia reflect on ways their battle with the disease has changed their lives.
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