Former cycling doper turned whistleblower Tyler Hamilton described Dr Eufemiano Fuentes as a "one-man Wal-Mart of doping" in his 2012 book The Secret Race, which detailed the use of performance-enhancing drugs in the sport.
Hamilton was among 11 former teammates who testified against Lance Armstrong during the US Anti-Doping Agency's investigation.
In his only UK interview, he gave ITV News his reaction to Armstrong finally confessing.
More top news
Disney has sealed a £39 billion takeover of 21st Century Fox's entertainment assets, including the group's 39% stake in Sky.
The Iraqi citizens won High Court damages against the government for alleged ill-treatment and unlawful detention during the Iraq War.
Médecins Sans Frontières says at least 6,700 of the deaths have been attributed to violence - including 730 children aged five or below.