According to the Associated Press, American cyclist Lance Armstrong has admitted to using performance-enhancing drugs. After years of denial, Armstrong reportedly confessed the matter to Oprah Winfrey today in an exclusive one-on-one interview that will air Thursday on Winfrey's network.

Winfrey set out the following tweet a few moments ago: "Just wrapped with @lancearmstrong More than 2½ hours. He came READY!"

Following a detailed report from the U.S. Anti-Doping Agency, Armstrong was stripped of his 7 Tour de France titles.

Click here to read the full AP report.

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