According to a report by the United States Anti-Doping Agency, disgraced cycling star Lance Armstrong's team ran "the most sophisticated, professionalised and successful doping programme the sport has ever seen"
USADA chief executive Travis T Tygart said in a statement that there was 'conclusive and undeniable proof' of a team-run doping conspiracy.
In his statement, Tygart said the evidence - which is in excess of 1000 pages - against Armstrong and his team was "overwhelming" and "and includes sworn testimony from 26 people, including 15 riders with knowledge of the US Postal Service Team and its participants' doping activities."
Tygart revealed it contains "direct documentary evidence including financial payments, emails, scientific data and laboratory test results that further prove the use, possession and distribution of performance enhancing drugs by Lance Armstrong and confirm the disappointing truth about the deceptive activities of the USPS Team, a team that received tens of millions of American taxpayer dollars in funding".
He also claimed the team's doping conspiracy "was professionally designed to groom and pressure athletes to use dangerous drugs, to evade detection, to ensure its secrecy and ultimately gain an unfair competitive advantage through superior doping practices".
Eleven of Armstrong's former team-mates testified against him, Tygart said.