Russia’s bid to get its ban from world athletics lifted in time for the Olympics has been hit by more revelations from the German broadcaster which exposed ‘state-sponsored’ doping in the country.

Less than a week before an International Association of Athletics Federations taskforce delivers its first report on Russia’s response to last year’s damning findings of a World Anti-Doping independent commission into its drugs problem, ARD’s Sport Inside programme has uncovered evidence that casts doubt on the nation’s commitment to cleaning up its act.

‘Doping Top Secret: Russia’s Red Herrings’, scheduled to air on Sunday night, shows a coach named in the Wada report as a supplier of banned performance-enhancing drugs – and who it was recommended was given a life ban – appearing to continue to work with elite athletes in his home city.