It's being called one of the greatest frauds in the history of sport: Seven-time Tour de France winner Lance Armstrong used performance enhancing drugs to cheat his way to the top, according to the U.S. Anti-Doping Agency, whose allegations will no longer be challenged by Armstrong.

Read more http://feeds.abcnews.com/click.phdo?i=e12632980242cdc4e4f48dfdfcecd7d1