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KANSAS CITY, Mo. — A report Saturday said cyclist Lance Armstrong will admit to doping in an interview with Oprah next week, the Washington Post said.

After spending more than a decade denying he doped to win the Tour de France, Armstrong reportedly admits to using “performance-enhancing” drugs, an anonymous source told the Post.

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The interview is scheduled to air Thursday on the Oprah Winfrey Network, or OWN.

The 41-year-old has used attorneys to fiercely defend reports of doping — but that changed in October when the U.S. Anti-Doping Agency “released a massive amount of evidence that showed otherwise.”

Read more from USA TODAY and The Washington Post.