FILE - In a Sept. 30, 2000 file photo, U.S. cyclist 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. Officials familiar with the decision tell The Associated Press the IOC has stripped Armstrong of his bronze medal from the 2000 Sydney Olympics because of his involvement in doping. Two officials say the IOC sent a letter to Armstrong on Wednesday night, Jan. 16, 2013, asking him to return the medal. (AP Photo/Ricardo Mazalan, File)

FILE - In this July 20, 2005, file photo, overall leader Lance Armstrong, left, of Austin, Texas, talks with Tour de France vice director general Christian Prudhomme, of France, before Prudhomme gave the official start for the 17th stage of the Tour de France cycling race between Pau and Revel, southwestern France. Admitting he cheated was a start. Now, it's all about whether Armstrong is ready to give details, lots of them, to clean up his sport. “We're left wanting more. We have to know more about the system," Prudhomme told the AP. "He couldn't have done it alone. We have to know who in his entourage helped him to do this.”(AP Photo/Christophe Ena, File)

FILE - In this Oct. 16, 2012, file photo, Travis Tygart, the CEO of the U.S. Anti-Doping Agency, speaks during an interview at his office in Colorado Springs, Colo. Admitting he cheated was a start. Now, it's all about whether Armstrong is ready to give details, lots of them, to clean up his sport. Tygart, who will have the biggest say about whether Armstrong can return to competition, called his confession a small step in the right direction. (AP Photo/Ed Andrieski, File)

FILE - In this Nov. 12, 2012, file photo, John Fahey, the head of the World Anti-Doping Agency, ponders a question during a news conference in Paris, ending the symposium called "The Pharmaceutical Industry and the Fight against Doping: New Partnerships for Clean Sport." Admitting he cheated was a start. Now, it's all about whether Armstrong is ready to give details, lots of them, to clean up his sport. "He didn't name names," Fahey told The Associated Press in Australia. "He didn't say who supplied him, what officials were involved." (AP Photo/Francois Mori, File)

FILE - In this July 6, 2004, file photo, U.S. Postal Service's Lance Armstrong rides ahead of Team Phonak's Tyler Hamilton,, center, and T-Mobile's Jan Ullrich, of Germany, during the third stage of the Tour de France cycling race between Waterloo, Belgium, and Wasquehal, northern France. Admitting he cheated was a start. Now, it's all about whether Armstrong is ready to give details, lots of them, to clean up his sport. Hamilton, whose testimony helped lead to Armstrong's downfall, says if Armstrong is willing to provide information to clean up the sport, a reduction in the sanctions would be appropriate. (AP Photo/Peter Dejong, File)

Lance Armstrong crosses the finish line during the 15th stage of the Tour de France cycling race in Verbier, Switzerland, July 10, 2009. | AP file

FILE - In this July 29, 2001, file photo, Lance Armstrong stands during ceremonies after winning the Tour de France cycling race following the 20th and final stage in Paris. Armstrong confessed to using performance-enhancing drugs to win the Tour de France during a taped interview with Oprah Winfrey that aired Thursday, Jan. 17, 2013, reversing more than a decade of denial. (AP Photo/Laurent Rebours, File)

FILE - In this Aug. 25, 2012, file photo, Lance Armstrong considers a question from a reporter after his second-place finish in the Power of Four mountain bicycle race at the base of Aspen Mountain in Aspen, Colo. Armstrong confessed to using performance-enhancing drugs to win the Tour de France cycling race during a taped interview with Oprah Winfrey that aired Thursday, Jan. 17, 2013, reversing more than a decade of denial. (AP Photo/David Zalubowski, File)

FILE - In this July 24, 2005, file photo, overall leader Lance Armstrong signals seven for his seventh straight win in the Tour de France cycling race as he pedals during the 21st and final stage of the race between Corbeil-Essonnes, south of Paris, and the French capital. Armstrong confessed to using performance-enhancing drugs to win the Tour de France during a taped interview with Oprah Winfrey that aired Thursday, Jan. 17, 2013, reversing more than a decade of denial. Armstrong called his run to seven Tour de France titles "so perfect for so long." (AP Photo/Peter Dejong, File)

FILE - In this May 17, 2011, file photo, Texas Rangers starter Matt Harrison delivers a pitch against the Chicago White Sox during the first inning of a baseball game in Chicago. The Rangers finalized a $55 million, five-year contract with Harrison on Thursday, Jan. 17, 2013. (AP Photo/Paul Beaty, File)