The world's most famous running coach pushed the limits with his training I wanted to find out if he cheated CBC Documentaries Alberto Salazar plans to appeal doping ban BBC Panorama investigation questions Mo Farah's use of L carnitine injections under former coach, Alberto Salazar Athletics: Leaked reports show Mo Farah changed account to US investigators on supplement jab The Straits Times Panorama: Fresh questions over Mo Farah's relationship with Alberto Salazar BBC Sport Alberto Salazar, who trained Olympic runners, banned 4 years by USADA The Washington Post