Barry Fudge, physiologist and former UK Athletics head of endurance, says Mo Farah's victories were due to meticulous planning, hard work and determination as opposed to "some magical drug or illicit aid". Mo Farah Brought Joy and Late Closing Speed to Distance Running The New York Times Mo Farah has lied at least twice to authorities Athletics Illustrated Magazine Performance enhancing substance was procured from Switzerland for athlete Mo Farah SWI swissinfo.ch Mo Farah interview from London Marathon exposed after changing account to doping officials Other Sport Express.co.uk L Carnitine Micro Doping Why is it so Controversial? Nike Oregan, Alberto Salizar, Mo Farah Scandal