In a major confession, Lance Armstrong admitted during an interview with Oprah Winfrey to using performance-enhancing drugs to win the Tour de France, a person with knowledge of the situation told The Associated Press.
After the interview Oprah tweeted: "Just wrapped with @lancearmstrongMore than 2 1/2 hours. He came READY!"
The interview is scheduled to air Thursday.
Last year Armstrong was stripped of his seven Tour de France titles after an anti-doping agency labeled him as a cheater.