Lance Armstrong remains defiant despite giving up his fight against doping charges brought by the US Anti-Doping Authority.
The American used a speech at a cancer convention on Wednesday (shown in the video above) to introduce himself as a seven-times Tour de France winner. He insisted that he would not let the shadow of doping allegations get in the way of his fundraising efforts, which have contributed just under half a billion dollars for the fight against cancer.
From the moment that he gave up his fight against the charges Armstrong has claimed that the USADA do not have the power to strip him of his seven Tour de France titles, accusing the organisation of making him the victim of an "unconstitutional witch-hunt".
"USADA cannot assert control of a professional international sport and attempt to strip my seven Tour de France titles," Armstrong said.
"I know who won those seven Tours, my team-mates know who won those seven Tours, and everyone I competed against knows who won those seven Tours."
The USADA claims that it does indeed have the power to strip Armstrong of his victories, though they are still in a tussle over jurisdiction with cycling's governing body the UCI.
For now, though, the official Tour de France website still lists Armstrong as the winner of the race from 1999 to 2005 inclusive - but the question of what would happen to the record books if Armstrong is stripped of his titles is unclear.
All but one of the cyclists who finished second to Armstrong - Alex Zuelle, Jan Ullrich (who lost to Armstrong three times), Andreas Kloeden and Ivan Basso - were subsequently banned for doping offences. The other, Joseba Beloki, was one of the riders at the centre of the Operacion Puerto doping investigation, though he was later cleared.