Armstrong tells Oprah he doped; will testify against others

Embattled cyclist Lance Armstrong backed away from a decade of denial that he used forbidden performance-enhancing drugs in an interview with Oprah Winfrey that is scheduled for broadcast Thursday, the New York Times reported.

According to people with inside knowledge, Armstrong is also planning to testify against several powerful individuals in the sport of cycling who knew about his illegal drug use and possibly facilitated it, the Times reported.