Banned cyclist Lance Armstrong may have lied to Oprah Winfrey during his so-called confession about doping during the Tour de France bicycle race, investigators have said.
During the interview, Armstrong admitted for the first time that his decade-long dominance of cycling and seven wins in the Tour de France were due to performance-enhancing drugs and oxygen-boosting blood transfusions.
He told Winfrey that he was taking the opportunity to confess to everything he had done wrong, including angrily denying reports for years claiming that he had doped, ABC News reports.
According to the report, investigators familiar with Armstrong's case, however, said that Armstrong didn't completely come clean.
They said that he blatantly lied about when he stopped doping, saying the last time he used the drugs and transfusions was the 2005 race.
Investigators familiar with the case said that Armstrong's blood values at the 2009 race showed clear blood manipulation consistent with two transfusions.
Armstrong's red blood cell count suddenly went up at these points, even though the number of baby red blood cells did not.
Investigators said this was proof that he received a transfusion of mature red blood cells.
They said that if Armstrong lied about the 2009 race, it could be to protect himself criminally.
The sources noted that there is no evidence right now that a criminal investigation will be reopened. Armstrong is facing at least three civil suits.
The second half of Armstrong's interview is set to air tonight, the report added. (ANI)