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". Athletics It's eight years to the day since Mo Farah completed the 'double double' at Rio 2016 After 10,000m gold in Brazil, Farah followed it up with victory in the Mo Farah under fire over London Marathon injections CNN Sir Mo Farah: 'I am a clean athlete' ITV News Mo Farah's old samples 'may be retested' Mo Farah Faces Heat For His Stand on L carnitine injections Ahead of the 2014 London Marathon Running Shoes Guru