Lance Armstrong paid for a motorcyclist to deliver the banned bloodbooster EPO to him during the 1999 Tour de France, former teammate Tyler Hamilton said in a BBC radio documentary broadcast on Monday.
Anti-doping officials believe world 100 metres record holder could have taken a cocktail of drugs including human growth hormone and EPO.
What former team mates of Lance Armstrong told the US Anti-Doping Agency (USADA) during their investigation into doping in cycling.
The American sprinter will miss the Athens Olympic Games and all her results since December 15, 2000, have been disqualified.
Calls grow for global athletics probe after widespread doping allegations.