Armstrong declines to defend himself in doping case

Associated Press
FILE - This April 1, 2012 file photo shows seven-time Tour de France champion Lance Armstrong grimacing during a news conference after the Memorial Hermann Ironman 70.3 Texas triathlon in Galveston, Texas. A federal judge in Austin, Texas, has thrown out Lance Armstrong's lawsuit against the U.S. Anti-Doping Agency, an attempt to stop the drug case against the seven-time Tour de France winner.    (AP Photo/Houston Chronicle, Michael Paulsen, File ) MANDATORY CREDIT

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Seven-time Tour de France winner Lance Armstrong decided not to formally challenge sweeping doping allegations from the U.S. Anti-Doping Agency.

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