The US cyclist Lance Armstrong says that he wants to take part in competitive sports again, even after being banned for doping and stripped of his honours.
The disgraced Tour de France champion stopped short of calling his life ban unfair, but told Oprah Winfrey his "death penalty" was "different" to what other cheating cyclists had received.
Armstrong says given the chance, he would love to return to sport and he'll never lose his competitive streak.
Armstrong denied allegations from critics who said he only agreed to speak to Winfrey to give himself a chance of competing again.
He fought back tears when he told Winfrey he finally cracked after he heard his son defending him.
Armstrong says he understands that millions of people who believed in him will feel betrayed and says said that being forced out of his cancer charity Livestrong was his most humbling moment.
Armstrong says he effectively lost $US75 million in sponsorship deals when USADA released its damning report last year.