Sochi 2014: Concerns over Moscow doping lab for Games
A Moscow testing laboratory for the Sochi 2014 Olympic Games should have its World Anti-Doping Agency (Wada) accreditation suspended, a disciplinary commission has been told.
The Wada panel heard there were serious concerns about its testing procedures.
This could mean that the Moscow lab may not be able to test during the Games in February.
The news comes after the Rio lab was stripped of its Wada accreditation ahead of next year's World Cup.
Wada is staging its Doping in Sport conference in Johannesburg, where the panel met.
Disciplinary committee chairman and former Wada president Dick Pound told BBC Sport: "Our expert laboratory group finally came to the conclusion that they ought to suspend the laboratory because it was not sufficiently reliable.
"We have had a hearing here in Johannesburg and the disciplinary commission has made a recommendation to John Fahey as chair of Wada and he has to decide whether he accepts that or not.
"The recommendation is for him to consider."
Wada president Fahey confirmed: "The disciplinary committee met and considered the evidence that it has received but there is still a process to be undertaken. There's a decision to be made by me.
"It shouldn't take me too much longer but the paperwork is extensive and it needs to be worked through in the proper fashion to get the correct outcome."