COLLINGWOOD president Eddie McGuire has thrown his support behind the AFL’s position on performance-enhancing drugs, calling for regular testing of teams during the finals.

McGuire believes the AFL should test every player in the two teams leading up to the grand final.

"I think exhaustive testing through the finals is essential - pre and post matches," McGuire told The Australian newspaper.

"If someone is caught cheating then throw them out. Take the grand final off the winners if that is required.

"|It would have to be a blanket rule and unfortunately it is a team game but we must have honesty within the competition."

McGuire also said the AFL had to consider informing clubs if they had a player on two strikes under the illicit drug policy.

"You might even have to do it on a first positive," he said.

"For clubs, it presents a huge risk of being blind-sided. That's a massive penalty when the club is not at fault."

The AFL Players Association has expressed concerns about the possibility of the AFL Commission changing a result if just one player produces a positive drug test on the day of the match.

The league confirmed its right to change results of matches if it believes scores have been affected by drug use.

AFLPA general manager of operations Matt Finnis said his body recognised the World Anti-Doping Authority's rules.

"The players are bound by the WADA code which has always had provision to penalise a team when more than one member tests positive," Finnis said.

"There is no provision for a penalty to be imposed (on a team) for one member testing positive.

"If the AFL acted outside the WADA code, clubs might point to the rules in place that punishment for teams could not be carried out."