Lance Armstrong, who for years vehemently denied cheating while winning a record seven Tours de France, told Oprah Winfrey that he used performance-enhancing drugs to advance his cycling career, according to media reports.
ABC News, the New York Times and USA Today, citing unnamed sources, reported Monday night that the former cyclist finally admitted to using steroids during an interview he and Winfrey taped Monday night in Armstrong's hometown of Austin, Texas.
Armstrong was emotional at times during the session, a source, who was familiar with the interview, told CNN.
The person refused to discuss the specifics of what Armstrong said, including whether he confessed to using performance-enhancing drugs as ABC and USA Today reported.
Armstrong also might pay back part of the money he received from the U.S. Postal Service, which sponsored the cyclist and his team while he was winning six of his Tours de France, the source said.
The source said Armstrong was in negotiations to repay some of the money.
ESPN reported in 2011 that the agency -- which is not tax-payer funded -- paid more than $31 million to sponsor the team during the final four years of its agreement.
A spokeswoman for the postal service said: "We are not in a position now to discuss any of the legal issues associated with these developments and the prior relationship between the U.S. Postal Service and Mr. Armstrong, but we will do so at an appropriate time."
Armstrong won the Tour de France a record seven straight years, beginning in 1999. The postal service sponsored the team from 1996 to 2004.
Tim Herman, one of Armstrong's lawyers, had no comment about the interview.