Performance enhancing substance was procured from Switzerland for athlete Mo Farah SWI swissinfo.ch Mo Farah doctor did not record controversial injection due to his 'mentally busy' job The Independent The Independent Ewan MacKenna: Mo Farah has more questions to answer than gold medals and the facts are stacking up against him : r running Mo Farah case raises concern over protection for athletes London Evening Standard The Standard 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 Farah caught up in controversy over 2014 London Marathon injection Knysna Plett Herald