World Anti-Doping Agency chief John Fahey says "everybody doped" in cycling during the Lance Armstrong era and the sport's administrators should take some responsbility.
"There was a period of time in which the culture of cycling was that everybody doped. There is no doubt about that. The administrators have to take some responsibility for that," the Australian told ABC radio.
"Is that period gone? That's something which I think the jury is out on and I think UCI are meeting this Friday to consider a number of aspects, including what their response must be, going forward."
Pressed on whether he meant everyone in cycling - literally - in that era had used drugs, Fahey replied: "The evidence that was given by those riders who are the teammates of Lance Armstrong, one after the other, they said the same thing - that you could not compete unless you were doping."
UCI president Pat McQuaid, who has held the position since 2006, on Monday warned against blaming the sport's authorities for the doping scandal.
His predecessor Hein Verbruggen was at the helm during Armstrong's reign.