In this July 6, 2010, file photo, Lance Armstrong grimaces prior to the start of the third stage of the Tour de France cycling race in Wanze, Belgium. Armstrong said on Thursday, Aug. 23, 2012, that he is finished fighting charges from the United States Anti-Doping Agency that he used performance-enhancing drugs during his unprecedented cycling career, a decision that could put his string of seven Tour de France titles in jeopardy. (AP Photo/Christophe Ena, File)
The U.S. Anti-Doping Agency erased 14 years of Lance Armstrong's career Friday — including his record seven Tour de France titles — and banned him for life from the sport that made him a hero to millions of cancer survivors after concluding he used banned substances.
USADA said it expected cycling's governing body to take similar action, but the International Cycling Union was measured in its response, saying it first wanted a full explanation on why Armstrong should relinquish titles he won from 1999 through 2005.
The Amaury Sport Organization that runs the world's most prestigious cycling race said it would not comment until hearing from USADA and the UCI.
Armstrong, who retired a year ago, said Thursday that he would no longer challenge USADA. He denied again that he ever took banned substances in his career.