Lance Armstrong prepares to take part in the 51 km Cancer Council Classic cycling race, part of the 2011 Tour Down Under, in Adelaide on January 16, 2011. (Mark Gunter/AFP/Getty Images)
Lance Armstrong speaks to soldiers at Kandahar Air Force Field on December 16, 2010. (BEHROUZ MEHRI/AFP/Getty Images)
Lance Armstrong, cyclist and founder and chairman of LIVESTRONG, looks on during the annual Clinton Global Initiative (CGI) September 22, 2010 in New York City. (Photo by Mario Tama/Getty Images)
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Lance Armstrong poses on the podium at the Tour de France 2010, his last participation in the race after winning it seven times. (JOEL SAGET/AFP/Getty Images)
Lance Armstrong looks back as he rides in the last stage of the 2010 Tour de France. (LIONEL BONAVENTURE/AFP/Getty Images)
Team Radioshack stand on the podium to receive the Team Classification award after the twentieth and final stage of Le Tour de France 2010. (Photo by Spencer Platt/Getty Images)
Lance Armstrong laughs as he carries his one year-old son, Max, before participating in a training session during the 2010 Tour de France. (NATHALIE MAGNIEZ/AFP/Getty Images)
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A fan cheers on Lance Armstrong during the 2010 Tour de France. (JOEL SAGET/AFP/Getty Images)
Lance Armstrong competes in the Tour de Suisse on June 18, 2010. (PASCAL PAVANI/AFP/Getty Images)
Lance Armstrong arrives for the official presentation of his cycling team at the 2010 Tour de Suisse on July 11, 2010. (PASCAL PAVANI/AFP/Getty Images)
Lance Armstrong competes during the third and final stage of the Criterium International cycling race on March 28, 2010. (PASCAL PAVANI/AFP/Getty Images)
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Lance Armstrong riding for RadioShack competes in the sixth and final stage of the Tour Down Under in Adelaide on January 24, 2010. (Mark Gunter/AFP/Getty Images)
Lance Armstrong promotes ‘Comeback 2.0: Up Close and Personal’ on December 1, 2009 in New York City. (Photo by Astrid Stawiarz/Getty Images)
Runners and fans jog with Lance Armstrong in midtown Manhattan for a group run in Central Park on October 31, 2009. Following a Twitter notice, Armstrong, 38, arrived at Niketown to begin the run. Armstrong, has twice run the New York City Marathon--in 2006 and 2007. (Photo by Spencer Platt/Getty Images)
Lance Armstrong launches the three-day Global Cancer Summit organized by Lance Armstrong’s Livestrong Foundation in Dublin, Ireland, on August 24, 2009. It is the first summit to be held outside the US. (PETER MUHLY/AFP/Getty Images)
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Lance Armstrong rides in the rain during Stage Three of the 2009 Tour of Ireland from Bantry to Cork on August 23, 2009 in Cork, Ireland. (Photo by Bryn Lennon/Getty Images)
Anna Hansen, Lance Armstrong, Linda Armstrong Kelly and baby Max arrive at the Aspen Art Museum’s Annual Summer Gala art CRUSH at the Aspen Art Museum on August 7, 2009 in Aspen, Colorado. (Photo by Leigh Vogel/WireImage)
Lance Armstrong of the U.S. Postal Service Team wears the Yellow Jersey as he rides hard up-hill during Stage 12 of the 2000 Tour de France.Mandatory (Mike Powell /Allsport)
Lance Armstrong poses with ‘Madone’, his bike designed by German Damien Hirst, on July 26, 2009 at the end of the 2009 Tour de France. (JOEL SAGET/AFP/Getty Images)
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Lance Armstrong answers a journalist’s question as he leaves the signature ceremony on July 16, 2009 before the twelfth stage of the 2009 Tour de France. (LIONEL BONAVENTURE/AFP/Getty Images)
Lance Armstrong rides during the 12th stage of 92nd Giro of Italy between Sestri Levante and Riomaggiore on May 21, 2009. (DAMIEN MEYER/AFP/Getty Images)
Lance Armstrong with his children Luke, Grace and Isabella on the podium after winning the Tour de France on July 24, 2005. (Photo by Robert Laberge/Getty Images)
Lance Armstrong rides down the Champs Elysees after stage 21 of the 92nd Tour de France between on July 24, 2005. (Photo by Robert Laberge/Getty Images)
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Lance Armstrong rides a custom built chopper given to him by Paul Teutel Sr. and Paul Teutel Jr. on ‘The Tonight Show with Jay Leno’ at the NBC Studios on September 1, 2004. (Photo by Kevin Winter/Getty Images)
Lance Armstrong celebrates on the podium after winning a sixth consecutive Yellow Jersey during Stage 20 of the Tour de France on July 25, 2004 in Paris, France. (Photo by Robert Laberge/Getty Images)
Lance Armstrong holds a glass of champagne during the 20th and last stage of the 91st Tour de France cycling race on July 25, 2004. (PATRICK KOVARIK/AFP/Getty Images)
Lance Armstrong raises six fingers as a symbol of his possible sixth successive victory in the Tour at the start of the 20th and last stage of the 91st Tour de France on July 25, 2004. (PATRICK KOVARIK/AFP/Getty Images)
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Lance Armstrong kisses his girlfriend Sheryl Crow after he put on the yellow jersey as overall leader at the end of the 15th stage of the 91st Tour de France on July 20, 2004. (PATRICK KOVARIK/AFP/Getty Images)
Pro-cyclist Lance Armstrong and musician Sheryl Crow attend the ‘Earth To LA - The Greatest Show On Earth’ event benefitting the Natural Resources Defense Council on May 6, 2004 in Los Angeles, California. (Photo by Vince Bucci/Getty Images)
Lance Armstrong and Sheryl Crow attend the Houston Rockets and Los Angeles Lakers playoff game on April 28, 2004. (Photo by Vince Bucci/Getty Images)
Lance Armstrong hoists the trophy on April 25, 2004 in Alpharetta, Georgia after securing the yellow jersey in Stage 7 and winning the general classification of the Tour de Georgia on April 25, 2004. (Photo by Doug Pensinger/Getty Images)
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Twin sisters kiss the leader of the US Postal Service Team, US Lance Armstrong, before the start of the 3rd stage of the 30th Tour of Algarve, in Lagoa, Southern Portugal, 20 February 2004. (MIGUEL RIOPA/AFP/Getty Images)
Sheryl Crow and Lance Armstrong attend the Los Angeles premiere of Universal Pictures’ film ‘Along Came Polly’ on January 12, 2004. (Photo by Vince Bucci/Getty Images)
Lance Armstrong celebrates on the podium at the end of the 20th and last stage of the 90th Tour de France cycling race on July 27, 2003. (JOEL SAGET/AFP/Getty Images)
Lance Armstrong and Spaniard Iban Mayo fall down at the end of the 15th stage of the 90th Tour de France on July 21, 2003. Armstrong won the stage. (BERNARD PAPON/AFP/Getty Images)
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Lance Armstrong and actor Arnold Schwarzenegger celebrate on the podium at the end of the 11th stage of the 90th Tour de France on July 17, 2003. (FRANCK FIFE/AFP/Getty Images)
Lance Armstrong rides in front of the Eiffel Tower during the prologue of the 90th Tour de France on July 5, 2003. (JOEL SAGET/AFP/Getty Images)
Lance Armstrong rides in Briancon, during the sixth stage of the Dauphine Libere race on June 16, 2003. (FRANCK FIFE/AFP/Getty Images)
Lance Armstrong shows his injured arm to the doctor of the Dauphine Libere on June 13, 2003, after he fell during the 5th stage of the cycling race. (FRANCK FIFE/AFP/Getty Images)
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Lance Armstrong receives his award for World Sportsman of the Year on May 20, 2003 during the Laureus World Sports Awards held at the Grimaldi Forum in Monaco. (Photo by David Cannon/Laureus via Getty Images)
President George W. Bush shakes hands with with Tour-de-France winner and cancer survivor Lance Armstrong for an event on cancer screening awareness September 18, 2002 at the White House in Washington, DC. (Photo by Alex Wong/Getty Images)
U.S. Senators Joseph Biden and Kay Bailey Hutchison along with cyclist Lance Armstrong listen during a news conference on a cancer care bill September 17, 2002 on Capitol Hill in Washington, D.C. (Photo by Stefan Zaklin/ Getty Images)
The 2002 Tour de France winner Lance Armstrong and his wife Kristen hold their children before an honor lap on the ‘Champs Elysees’ after the last stage of the 89th French cycling race in Paris on July 28, 2002. (FRANCK FIFE/AFP/Getty Images)
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Lance Armstrong waves the winners trophy after winning the 2002 Tour De France. (Photo by Ezra Shaw/Getty Images)
Tour de France victor Lance Armstrong presents President George W. Bush with a US Postal Service yellow jersey and a replica of the bike Armstrong used to win the Tour de France. (MIKE THEILER/AFP/Getty Images)
Lance Armstrong, the 2001 Tour de France winner, poses with New York City Mayor Rudy Giuliani who proclaimed August 2nd ‘Lance Armstrong Day’ on the steps of the James A. Farley Post Office August 2, 2001 in New York City. (Photo by Mario Tama/Getty Images)
The 2001 Tour de France winner, Lance Armstrong, holds his national flag as he makes an honor lap with his teammates on the ‘Champs Elysees’ after the last stage in Paris 29 July 2001. (JOEL SAGET/AFP/Getty Images)
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Lance Armstrong speeds down the road in the Mens Road Individual Time Trial to win the Bronze Medal during the Sydney 2000 Olympic Games in Sydney, Australia. (Mike Powell /Allsport)
The leader of the Deutsche Telekom team German Jan Ullrich salutes Lance Armstrong after crossing the finish line of the 14th stage of 88th Tour de France on July 22, 2001. (STF/AFP/Getty Images)
Lance Armstrong celebrates being race winner with son Luke after the final Stage of the 2000 Tour De France. (Tom Able-Green /Allsport)
Lance Armstrong celebrates winning the 2000 Tour De France. (Doug Pensinger/ALLSPORT)
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Lance Armstrong wears the Yellow Jersey while holding his son, Luke before Stage 13 of the 2000 Tour de France (Doug Pensinger /Allsport)
President Bill Clinton receives a replica bicycle, helmet and autographed jersey from 1999 Tour De France champion Lance Armstrong and his wife Kristen on August 10, 1999. (TIM SLOAN/AFP/Getty Images)
Lance Armstrong is congratulated by his mother, Linda, after winning the Time-Trial in Stage 19 in the 1999 Tour De France. (Tom Able Green/ALLSPORT)
The yellow jersey winner Lance Armstrong poses for photographers with his wife Kristen and his mother Linda after winning the 86th Tour de France on July 25, 1999. (JOEL SAGET/AFP/Getty Images)
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Lance Armstrong celebrates winning the stage and the yellow jersey during the prologue time trials at the 1999 Tour De France. (Doug Pensinger /Allsport)
Lance Armstrong takes a curb in a downhill during the 15th stage of the Tour de France on July 20,1999. (JOEL SAGET/AFP/Getty Images)
Lance Armstrong rides to his third Tour de France victory in Paris in July 1999. (Photo by Al Messerschmidt/WireImage)
Lance Armstrong of the USA takes 6th during the mens cycling individual time trials at the 1996 Centennial Olympic Games in Atlanta, Georgia on August 3, 1996. (Photo by Pascal Rondeau /Getty Images)
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Lance Armstrong Puts On The Yellow Jersey During Stage Two Of The Tour Dupont on May 2, 1996. (Photo By Al Bello/Getty Images)
Lance Armstrong celebrates his win during Stage 18 of the Tour De France on July 21, 1995. (Photo by Mike Powell/Getty Images)
Lance Armstrong races to victory during stage 5 of the 1995 Tour Dupont in Roanoke, Virginia. (Pascal Rondeau/ALLSPORT)
Lance Armstrong in action on the first time-trial stage of the 1994 Tour de France. (Pascal Rondeau/ALLSPORT)
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Lance Armstrong celebrates after completing a difficult final climb up Beech Mountain in North Carolina to win stage seven of the Tour Dupont. (Glenn Cratty/ALLSPORT)
Lance Armstrong climbing Beech Mountain, North Carolina during the 1993 Tour Dupont. (Mike Powell/ALLSPORT)
American Lance Armstrong celebrates as he crosses the finish line to win the individual road race at the World Cycling Championships on August 29, 1993. (ANJA NIEDRINGHAUS/AFP/Getty Images)
Lance Armstrong participates in the 1992 Tour DuPont. (Mike Powell /Allsport)
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17-year old Lance Armstrong competes in the Jeep Triathlon Grand Prix in May 1988 as a professional triathlete. (Photo by Stephen Dunn/Getty Images)
17-year-old Lance Armstrong competes in the Jeep Triathlon Grand Prix in May 1988 as a professional triathlete. (Photo by Stephen Dunn/Getty Images)