Collingwood president Eddie McGuire has accused the AFL of leaking a report that at least four Magpies players voluntarily admitted to using illicit drugs in 2012.
The Herald Sun said on Tuesday the unnamed players had notified AFL medical staff of their drug use late last season.
As a result, the players did not have a strike marked against their name under a controversial clause in the AFL's Illicit Drugs Policy.
McGuire questioned the timing of the report ahead of Wednesday's historic summit on drug use in the AFL.
"I'll tell you what I'm really filthy about is that this story could have only come from one place - it could have only come from the AFL," McGuire told Triple M.
"They're the ones that have got the information.
"It strikes me as a bit odd that the day before we have a drug summit that has probably brought the heat on a whole lot of the issues involved here that have been fostered by the Collingwood Football Club, that suddenly it becomes a Collingwood issue.
"It ain't a Collingwood issue and we don't care because you know what? We're actually taking this on head on; we're saying there's a problem.
"I said it in 1998, I said in 2005 and I'll say it today on Tuesday, January 29, that there is a big issue in our community and we have taken great steps in football, but now we have to review those steps."
Under the AFL policy, clubs are only informed when a player tests positive to using illicit drugs on three occasions.
The player is also subject to a $5000 dollar fine and a suspension of up to 18 matches.
However, if a player reports to using drugs, whether deliberately or inadvertently, they are exempt from having a strike recorded against their name.
McGuire called on the AFL Players' Association to give the clubs a greater share of responsibility when dealing with players who had registered strikes.
"They've actually got to start thinking about the players' welfare, not get them off the hook all the time," he said.
"I don't know if the Players' Association is actually working for the players, or working for the managers these days, but what they need to do is give an opportunity for clubs to be able to look after their own."