Mo Farah's coach Alberto Salazar faces BBC claim of doping
Mo Farah's coach Alberto Salazar has been accused of violating anti-doping rules by a BBC investigation.
US athletics trainer Salazar is one of the world's most successful coaches and is head of the prestigious Nike Oregon Project in Portland.
The Panorama probe alleges that Salazar was involved in doping American Galen Rupp, the 10,000 metres silver medallist at the 2012 London Olympics behind Farah, in 2002 and reported that some of the coach's methods included the use of banned steroids and unethical practices.
There is no suggestion that British athlete Farah has broken any rules. The Olympic 5,000 metres and 10,000m champion told the BBC: "I have not taken any banned substances and Alberto has never suggested that I take a banned substance."
Salazar and Rupp deny any wrongdoing, but the BBC programme showed Rupp's blood chart to World Anti-Doping Agency director general David Howman.
He said that "if the allegations are as serious as they have been reported then they need to be investigated beyond a national level".