Mitchell said van Egmond was 'incensed' by referee Matthew Breeze's decision to give the Glory an injury-time penalty after Perth forward Adrian Trinidad crashed into Jets' skipper Jade North in the box.

In dramatic circumstances the penalty had to be taken twice by Glory striker Eugene Dadi after some encroachment in the box on the first attempt.

But the French-Ivorian hit man kept his cool, stroking it past Jets' stopper Ante Covic on both occasions to give Perth a deserved 2-2 draw just as it seemed Newcastle were going to hold on for the win.

And, as the final whistle blew, van Egmond lost his cool, striding onto the pitch to confront referee Breeze before yelling abuse at Trinidad.

His actions sparked some ugly scenes at Members Equity Stadium, with players and coaching staff from both sides involved in the heated clash.

"I think Gary was a little bit incensed that the penalty was awarded," said Mitchell.

"He probably thinks it wasn't a penalty and I was thinking I don't know if it was or not.

"We were on the touch and I think he had a bit of a go at the ref and said something to Trinny and Trinny was a bit upset with what was said, (it) caused a bit of ruckus.

"He (Trinidad) just said he was called a name and he wasn't too happy about it."

The Glory coach denied Trinidad had been called a 'diver' by van Egmond but refused to reveal what the Newcastle coach had called the forward, simply saying: "It wasn't diver. It was derogatory, I think."

The coach couldn't confirm whether the club would be writing to Football Federation Australia (FFA) to voice any concerns, a Glory spokesman saying the club would look at its options later this week although it seems likely the FFA will take a dim view of van Egmond's outburst.

Trinidad is no stranger to controversy, the Argentine import copping a blast from Sydney coach John Kosmina for simulating an injury during the Glory's 2-1 win over the Sky Blues last month, the action leading to the dismissal of Sydney defender Iain Fyfe.

But van Egmond refused to accuse Trinidad of simulating anything this time around, and avoided questions on the post-match bust-up, simply saying: "We congratulated the referees and congratulated the players and walked off."

But the Jets coach did believe Trinidad's contact with North was a premeditated attempt to earn a penalty by positioning himself to take heavy contact from the Newcastle skipper.

"I'm not saying he's a diver," declared van Egmond. "I'm saying he may have run into Jado (North) and he's fallen over.

"But I don't know how much he's encouraged the collision and in that respect, I think that's something which is getting a lot of press at the moment in regards to simulation and it is very difficult for the referee to adjudicate on it."

A despondent North simply said he had no option but to collide with Trinidad.

"I really don't know what I'm supposed to do," he said. "If someone's running at me, I've got to protect myself.

"I've got a feeling that he was looking for it (the penalty), there's no doubt in my mind he was looking for it."

Van Egmond also said he didn't have any issue with the red cards issued to Perth skipper Jamie Coyne on the hour and then to Newcastle's Daniel Piorkowski, which left both sides with 10 men at the end.

"I was a bit unsighted with Coyney's, I actually thought it was Dadi (who was being carded) to be honest," he said.

"But Daniel, I don't know if it was a straight red but it was definitely a yellow and he was on a yellow anyway so I have no complaints with that."

Mitchell also felt the Jets should have no issues with their four yellow cards, the coach saying he felt Newcastle had tried to deliberately intimidate the Glory players.

"I think Newcastle played a very good, attractive football, but they certainly get stuck in," Mitchell said.

"I don't think they've got any complaints that the referee gave out some of the yellow cards with some of their tackling, not even going for the ball, just go for the man."