Melbourne Victory assistant coach Jean Paul de Marigny is resigned to missing the A-League grand final after being sensationally sent off for an altercation with Sydney veteran David Carney in Saturday night's A-League semi-final.

But he is likely to plead that a subconscious moment of confusion in the aftermath of Terry Antonis' sensational extra-time winner sparked his ''pitch invasion''.

Jean Paul de Marigny (centre) clashes with Sydney's David Carney. Fox Sports

The ensuing confrontation also resulted in Victory goalkeeping coach Dean Anastasiadis coming on to the playing area, becoming involved in the scuffle and also receiving a red card that will likely keep him out of Saturday night's grand final against Newcastle.

The A-League match review panel (MRP) will hear charges of violent conduct against the Victory pair. If the charges are upheld, the coaches will receive the mandatory sentence of a one-match ban plus another game.

But they could be up for a much longer punishment of several weeks or perhaps months if officials decide the gravity of the offence, the magnitude of the match and the circumstances in which they occurred requirer a much stiffer penalty.

De Marigny is understood to have told colleagues that when Antonis struck the last-gasp winner, he for some reason had it in his mind that the ''golden goal'' rule applied and the game was over, even though he knew before the match that wasn't the case.

He ran onto the field on impulse and when Carney confronted him he shoved the players arm away at chin level, the pair then getting into a heated exchange at close quarters.

''He didn't slap him as people have been saying,'' one Victory insider said.

Anastasiadis ran on to the pitch in a bid to keep the peace but then became involved in the altercation too.

Victory are hoping that Anastasiadis' punishment will be less and will argue that his intervention was well-intentioned, seeking to act as a peacemaker.

As it is, the pair will no be allowed to act in any official capacity at the grand final. They can enter the stadium but will not be allowed into the dressing room before or after the match, or at half-time, nor will they be allowed near the technical area or to work with coach Kevin Muscat and the players in the warm up.

They can work with the team during the lead up to the game.

If they decide to appeal against any penalty they can go to the Disciplinary and Ethics Committee, but that is a gamble as while it might reduce any sentence it could ultimately decide to give them a heavier penalty.

De Marigny has twice worked for the Jets in the past, as assistant to Richard Money in the club's first season and also as No.2 to Scott Miller, the latter coming in between two stints at Victory.

He has in recent weeks been named in media reports as a possible candidate for the vacant Wellington Phoenix job.

Meanwhile, some Victory supporters have voiced their concerns that the grand final will be played at McDonald Jones Stadium in Newcastle just 24 hours after the Newcastle Knights NRL team will face the Rabbitohs at the same venue.

But with tickets already sold and many Victory fans having already bought airline tickets and booked hotel rooms, there is no chance that the FFA will switch the venue.