ARD will broadcast another documentary on doping in Russian athletics on Sunday ©Getty Images

The International Association of Athletics Federations (IAAF) is bracing itself for fresh allegations about the doping crisis in Russia after German broadcasters ARD/WDR announced they will air part three of their explosive documentary series on Sunday (March 6).

Entitled "Russia's Red Herrings", the TV documentary will be shown at 10.05pm CET on the weekly Sport Inside programme.

The film by Hajo Seppelt and Florian Riesewieck will last for 30 minutes with a full length English version available online immediately after its first broadcast.

A shorter eight minute version, which will not include full details, will be featured as part of the Sportschau programme earlier in the evening, at 6pm CET.

An ARD documentary in December was the catalyst for the doping scandal.

Allegations were made of systematic state-sponsored doping within Russia's athletics team and a list of athletes with allegedly suspect values were revealed.

Two reports from the World Anti-Doping Agency's (WADA) Independent Commission followed which led to Russia being banned from international competition by the IAAF.

Ethiopia, including marathon runner Endeshaw Negesse, is the latest country to be rocked by doping revelations
Ethiopia, including marathon runner Endeshaw Negesse, is the latest country to be rocked by doping revelations ©Getty Images

If their suspension is not lifted in time, the country will not be able to send athletes to the Rio 2016 Olympics in August.

ARD will screen their latest findings just days before the IAAF Council meets to discuss the findings of a Taskforce it set up in the aftermath of the WADA reports, which is overseeing Russia's potential return to the fold.

The governing body could yet have new revelations to discuss when it convenes in Monte Carlo on Thursday (March 10).

The news of the documentary comes as Ethiopia - a country which has huge pedigree in long distance running - finds itself dragged into the doping mire.

On Wednesday (March 2) it was revealed that Tokyo Marathon winner Endeshaw Negesse had failed a drugs test amid reports that as many as nine athletes from the African country were under investigation.

Bililign Mekoya, the secretary general of Ethiopia's track and field federation, told Associated Press that three of the country's athletes have been suspended.

The names of the athletes were not provided, with Mekoya saying another trio were under investigation without being suspended.

Ayalew Tilhaun, Ethiopia's team doctor, said athletes from the country had recently tested positive for steroids, testosterone, ephedrine and furosemide.