Seven-time Tour de France winner Lance Armstrong faced a deadline Thursday to formally challenge sweeping doping allegations from the U.S. Anti-Doping Agency or accept sanctions that could include a lifetime ban from the sport and potentially strip him of his titles.
Armstrong has strongly denied doping during his stellar career. The question was whether he will keep fighting USADA or officially give up and move on, risking a permanent stain on his legacy. The deadline was 2 a.m. EDT Friday  … More