Russia to lose final track medal from London 2012 Olympics

On Tuesday, the Court of Arbitration for Sport (CAS) handed down a 10-year ban to Russian distance runner Tatyana Tomashova after re-testing her samples from the London 2012 Olympics

AIU report shows five nations represent 54 per cent of banned athletes

Athletes from Russia, India, Kenya, Morocco and China make up 54 per cent of the total 473 individuals serving sanctions

Russian racewalker loses Olympic and world titles after anti-doping violation

Russia won eight gold medals in athletics at London 2012, but after a series of disqualifications, they have two