Austin, Texas: Lance Armstrong's fight to block charges by U.S. anti-doping officials that the seven-time Tour de France champion used performance-enhancing drugs goes before a federal judge on Friday.
The U.S. Anti-Doping Agency accuses Armstrong of using steroids and blood boosters to win the Tour de France from 1999-2005, and leading a complex doping program on his teams. If found guilty, he faces a lifetime ban from the sport and could be stripped of his titles.
Armstrong denies doping and has sued to block the case. He argues USADA's investigation and arbitration process are unfair and violate his constitutional right to due process. Armstrong also claims the International Cycling Union, the sport's governing body, should have jurisdiction and the union has come to his defense.