Lance Armstrong stripped of his seven Tour de France titles by cycling 's ruling body . The U.S. Anti-Doping Agency said it was investigating the allegations against Armstrong, who has denied doping. But then came the fall from grace . Eleven of the Texan 's former teammates testified against him in USADA report . Armstrong has stepped down as chairman of the Livestrong Foundation .
Lance Armstrong stripped of his seven Tour de France titles by cycling 's ruling body . The U.S. Anti-Doping Agency said it was investigating the allegations against Armstrong, who has denied doping. Eleven of the Texan 's former teammates testified against him in USADA report . Armstrong has stepped down as chairman of the Livestrong Foundation .