Former Danish cyclist Bjarne Riis admitted Friday he used performance-enhancing drugs during his 1996 Tour de France victory.
"I have taken doping. I have taken EPO," Riis said during a televised news conference. "I have made errors and I would like to apologize."
Riis said he also used cortisone and human growth hormone, and that he didn't suffer any side effects from EPO, a blood-boosting hormone.
"The only effect I had was that I rode faster," he said.
Riis said he used the substances from 1993 to 1998, including during his Tour victory. Riis said he no longer considers himself a worthy winner of the Tour, and indicated he would be willing to give back the title.