Professional Footballers Australia slammed the decision to suspend Perth Glory's Baird and Central Coast Mariner Perez for simulation as a 'denial of natural justice'.

FFA's Match Review Panel suspended both Baird and Perez for simulation after both won penalties in their respective matches over the weekend.

PFA chief executive Brendan Schwab said that while the players' union supported a tougher stance on simulation, it was completely unfair to deny a player a right to contest his case before a tribunal.

"Our position is made up very simply of two points," said Schwab. "The first one is that we have supported the moves to address simulation within the A-League.

"But we do have very real concerns with a system that does see players penalised without even having the opportunity of a hearing.

"It's a dangerous system that's going to rely solely on technology. The two players suspended will face a two-match ban, without even having the opportunity to present their case to an independent panel.

"We think that's a denial of natural justice. We think that it relies too much on the technology and we think that FFA should address that."

Schwab revealed the PFA and FFA had long discussions ahead of the season about the changes to the match review system which limited a players' right to have their case heard. However, FFA chose to pursue its own agenda.

"The Match Review Panel now has the power to not only overturn a referee's decision but to investigate a matter which may have escaped the referee's attention, charge the player, convict the player and penalise the player without a hearing," he said.

"We think that FFA does not lawfully have the power to do it. If the rules were challenged in court, the challenge would succeed. We fail to understand why FFA has taken the position it has taken."

Schwab said that PFA did not plan on pursuing its grievance through the courts and hoped FFA would 'show some common sense' and change the rules.

He said that the AFL and NRL model, where the match review panel ruled and then offered the player a chance of a hearing, was the PFA's preferred model.

But he said FFA had insisted it had the right to impose whatever disciplinary system it saw fit.

"They said as a private body, they had no obligation to afford players natural justice even though they are making decision which vitally affect the livelihood of the players," Schwab said.

Melbourne Victory skipper Kevin Muscat said that he felt it was important that the match review process maintained its integrity and allowed players to have a hearing on such cases.

He added: "We don't like seeing (diving). But at the same time every player has the right to go to a tribunal and air what he thinks of the situation."