Lance Armstrong May Have Lied to Winfrey: Investigators

Lance Armstrong may have lied to Oprah Winfrey during his so-called confession Thursday night about his doping during the Tour de France bicycle race, investigators said.

Armstrong, 41, admitted for the first time that his decade-long dominance of cycling and seven wins in the Tour de France were owed, in part, 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.

Investigators familiar with Armstrong's case, however, said today that Armstrong didn't completely come clean. They say he blatantly lied about when he stopped doping, saying the last time he used the drugs and transfusions was the 2005 race.

"That's the only thing in this whole report that upset me," Armstrong said during the interview. "The accusation and alleged proof that they said I doped [in 2009] is not true. The last time I crossed the line, that line was 2005."

"You did not do a blood transfusion in 2009?" Winfrey asked.

"No, 2009 and 2010 absolutely not," Armstrong said.

Investigators familiar with the case disagree. They said today 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.

If Armstrong lied about the 2009 race, it could be to protect himself criminally, investigators said.