Lance Armstrong has announced he will stop fighting a barrage of drug charges from the US Anti-Doping Agency (USADA), putting at risk his unparalleled string of seven Tour de France titles and his legacy as one of the greatest sportsmen in history. Armstrong's declaration on Thursday night sets up a likely lifetime ban from the sport and the possibility that he will be stripped of his signature achievement the extraordinary run of Tour titles he won from 1999 to 2005. File photo : U.S. Postal Service rider Lance Armstrong of the United States, the first six-time winner of the Tour de France cycling classic, celebrates on the podium with the trophy after the 20th and final stage of the race in Paris-France on July 25, 2004. Photo by Laurent Zabulon/ABACA Armstrong Lance Tour de France US Postal [Team] Activite sportive Sport Activity Cyclisme Cycling Maillot Jaune Yellow Jersey Presse Photographe Media Journaliste Paparazzi Press France Frankreich Ile-de-France Paris Horizontal Landscape Plan americain Half length # 63175_43