Lance Armstrong's former doctor Michele Ferrari has dismissed claims he was a key figure in systematic doping at the American's US Postal Service team.
was banned for life by the US Anti-Doping Agency
(Usada) in July, with evidence set out in Usada's
published this month.
But the Italian dismissed key witness statements as "false accusations" and uncorroborated "visual testimony".
He also denied having any professional relationship with Armstrong after 2005.
Armstrong report key claims:
- Achievements of USPS/Discovery Channel pro cycling team accomplished through the most sophisticated, professional and successful doping programme that sport has ever seen
- Armstrong's career at the team was fuelled from start to finish by doping
- More than a dozen former team-mates, friends and former team employees confirm a fraudulent course of conduct
- Armstrong acted with the help of a small army of enablers, including doping doctors, drug smugglers and others within and outside the sport and his team
- Armstrong had ultimate control over not only his own personal drug use but the doping culture of the team
- Team staff were good at predicting when testers would turn up and seemed to have inside information
- Evidence is beyond strong and as strong as any case brought by Usada in its existence
"The false accusations thrown at me are all based on 'visual' testimonies of each of the six witnesses, telling of events that concerned only me and the 'witness' himself," said Ferrari, 59.
"They never evoke the presence of another witness, whether between the six [key witnesses Floyd Landis, Tyler Hamilton, Christian Vande Velde, George Hincapie, Levi Leipheimer and Tom Danielson], or other persons who may corroborate the veracity of their claims.
"An exception is the declaration of Landis when he says: 'George Hincapie also had blood drawn by Dr Ferrari in my presence.' Too bad that Hincapie, in his affidavit, makes no reference to this serious charge."
A total of 26 witnesses, 11 of whom are former team-mates of Armstrong, cited doping-related incidents involving Ferrari.
The Italian denied having a professional relationship with 41-year-old Armstrong after 2005.
But he admits to meeting and accepting payments from the American between 1996 and 2006 - payments totalling around $1m (£619,000), according to Usada.
"I do not exclude that we may have met, but I deny that I had a professional relationship with Armstrong," Ferrari said.
"The dossier documented payments of Lance Armstrong to Health and Performance SA (a company for which I worked as a consultant) in 2005 and 2006.
"Those are delayed payments for consultancy in previous years."
Usada ordered 14 years of Armstrong's career results, including his seven Tour de France titles, to be erased.
The former cyclist has always denied doping, but gave up his fight against the charges in August.