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FILE - This is a Friday, May 17, 2013 file photo of the head of the U.S. Anti-Doping Agency Travis Tygart as he addresses the media at the EU Council in Brussels . Tygart the man who brought down Lance Armstrong, said Thursday March 20, 2014 that time is running out for cycling to confront its culture of doping and clean up the sport once and for all. (AP Photo/Geert Vanden Wijngaert, File)

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U.S. Anti-Doping Agency (USADA) CEO Travis Tygart leaves a federal courthouse following the sentencing of a man who sent Tygart a threatening email, in Denver, Thursday Jan. 23, 2014. A judged on Thursday ordered Gerrit Keats, of Clearwater, Fla., to serve three years' probation and complete 540 hours of community service for threatening Tygart after the USADA stripped Lance Armstrong of his Tour de France titles. (AP Photo/Brennan Linsley)

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FILE - This Feb. 28, 2011 file photo shows Lance Armstrong listening to a fellow cancer survivor during a news conference in Los Angeles.. The world may soon know what the U.S. Anti-Doping Agency has on Armstrong. USADA has said it had 10 former teammates ready to testify against Armstrong before he chose not to take his case to an arbitration hearing. The list likely includes previous Armstrong accusers Floyd Landis and Tyler Hamilton. (AP Photo/Damian Dovarganes, File)

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FILE - This Feb. 28, 2011 file photo shows Lance Armstrong listening to a fellow cancer survivor during a news conference in Los Angeles.. The world may soon know what the U.S. Anti-Doping Agency has on Armstrong. USADA has said it had 10 former teammates ready to testify against Armstrong before he chose not to take his case to an arbitration hearing. The list likely includes previous Armstrong accusers Floyd Landis and Tyler Hamilton. (AP Photo/Damian Dovarganes, File)

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FILE - This Feb. 28, 2011 file photo shows Lance Armstrong listening to a fellow cancer survivor during a news conference in Los Angeles.. The world may soon know what the U.S. Anti-Doping Agency has on Armstrong. USADA has said it had 10 former teammates ready to testify against Armstrong before he chose not to take his case to an arbitration hearing. The list likely includes previous Armstrong accusers Floyd Landis and Tyler Hamilton. (AP Photo/Damian Dovarganes, File)

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FILE - This July 23, 2000 file photo shows Tour de France winner Lance Armstrong riding down the Champs Elysees with an American flag after the 21st and final stage of the cycling race in Paris. The superstar cyclist, whose stirring victories after his comeback from cancer helped him transcend sports, chose not to pursue arbitration in the drug case brought against him by the U.S. Anti-Doping Agency. That was his last option in his bitter fight with USADA and his decision set the stage for the titles to be stripped and his name to be all but wiped from the record books of the sport he once ruled. (AP Photo/Laurent Rebours, File)

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FILE - This July 23, 2000 file photo shows Tour de France winner Lance Armstrong riding down the Champs Elysees with an American flag after the 21st and final stage of the cycling race in Paris. The superstar cyclist, whose stirring victories after his comeback from cancer helped him transcend sports, chose not to pursue arbitration in the drug case brought against him by the U.S. Anti-Doping Agency. That was his last option in his bitter fight with USADA and his decision set the stage for the titles to be stripped and his name to be all but wiped from the record books of the sport he once ruled. (AP Photo/Laurent Rebours, File)

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Lance Armstrong contended in his lawsuit that the U.S. Anti-Doping Agency lacked jurisdiction to pursue a case against him and its arbitration process violated his constitutional rights. (Associated Press)

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Lance Armstrong contended in his lawsuit that the U.S. Anti-Doping Agency lacked jurisdiction to pursue a case against him and its arbitration process violated his constitutional rights. (Associated Press)