(ABCNEWS.GO) — Lance Armstrong today admitted to Oprah Winfrey that he used performance enhancing drugs to win the Tour de France, sources told ABC News.

A goverment source tells ABC News that Armstrong is now talking with authorities about paying back some of the US Postal Service money from sponsoring his team. He is also talking to authorities about confessing and naming names, giving up others involved in illegal doping. This could result in a reduction of his lifetime ban, according to the source, if Armstrong provides substantial and meaningful information.

Armstrong made the admission in what sources describe as an emotional interview with Winfrey to air on “Oprah’s Next Chapter” on Jan. 17.

The 90-minute interview at his home in Austin, Texas, was Armstrong’s first since officials stripped him of his world cycling titles in response to doping allegations.

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