PERTH Glory has called offside on Optus Stadium management over the way their most vocal fans were treated during Mondays night’s friendly against Chelsea.

A core group of Glory fans accused stadium management of going back on its word by cracking down on “active” supporters for standing, singing and banging drums. The fans left the venue and watched the rest of the game at The Camfield pub.

Similar complaints were made on social media by Chelsea fans.

Glory Fans United spokesman Blayne Treadgold said the unexpected turn of events had taken some of the shine off what should have been a celebration for Glory faithful.

He said Glory fans and a club representative had met Optus Stadium staff before the match to avoid such a scenario.

The drums and “active” nature of their support had been approved.

“It’s more disappointment now because it was supposed to be a good night,” Mr Treadgold said. “You don’t get a club of that stature coming around these parts too often.”

The complaints were backed by Perth Glory chief executive Tony Pignata. He was disappointed with the way security dealt with some the club’s most loyal fans.

“Our active supporters conformed to an agreed set of behavioural regulations laid out by Optus Stadium officials during an on-site briefing that took place some two weeks before the event,” he said. “Despite this, they were prevented from engaging in their agreed active support by security staff who were overzealous in their approach and we find this unacceptable.

“We would like to commend our active supporters for opting to depart the stadium rather than engage in behaviour which may have caused the incident to escalate.

“It is imperative that such incidents do not occur at future events and we will work closely with the stadium and event authorities to ensure that this is the case.”

An Optus Stadium spokeswoman confirmed a pre-match meeting took place at which stadium management agreed drums could be brought into the venue as long as fans followed the direction of Perth Glory, stadium management and security.

She said security asked the fans to consider other spectators after stadium management received many first-half complaints about drum noise and blocked views.

“Stadium management in turn asked that the Perth Glory representative speak with the supporters with this same message,” she said. “The supporters refused to comply and left the stadium.”

The spokeswoman said stadium management would work with Perth Glory, security and police to review the activity within the Glory supporter area.