Mo Farah's coach Alberto Salazar in spotlight again after leaked report

Mo Farah's coach Alberto Salazar has again found himself at the centre of doping allegations after a leaked report alleged he may have abused prescription medicines and drug infusions.

The Sunday Times published a leaked report from the United States Anti-Doping Agency (USADA) which stated that Salazar, the head coach at the Nike Oregon Project in Portland, gave six leading American runners intravenous drip infusions which "almost certainly" broke anti-doping rules.