FILE - In this Feb. 22, 2009 file photo, Lance Armstrong prepares for the final stage of the Tour of California cycling race in Rancho Bernardo, Calif. The U.S. Anti-Doping Agency is bringing doping charges against the seven-time Tour de France winner, questioning how he achieved those famous cycling victories. Armstrong, who retired from cycling last year, could face a lifetime ban from the sport if he is found to have used performance-enhancing drugs. He maintained his innocence, saying: "I have never doped." (AP Photo/Marcio Jose Sanchez, File)

Photo by: Marcio Jose Sanchez

FILE - In this Feb. 22, 2009 file photo, Lance Armstrong prepares for the final stage of the Tour of California cycling race in Rancho Bernardo, Calif. The U.S. Anti-Doping Agency is bringing doping charges against the seven-time Tour de France winner, questioning how he achieved those famous cycling victories. Armstrong, who retired from cycling last year, could face a lifetime ban from the sport if he is found to have used performance-enhancing drugs. He maintained his innocence, saying: "I have never doped." (AP Photo/Marcio Jose Sanchez, File)