Sydney have suspended forward Barry Hall indefinitely from the AFL.

Hall was charged by the match review panel for attempting to strike Collingwood's Shane Wakelin at ANZ Stadium last Saturday night and imposed with a two-game suspension.

But the Swans moved to stand down Hall for an indefinite period, and said he would work with the club's psychologist.

Swans coach Paul Roos said Hall was incapable of playing at the highest level at the moment, and could not say when he would return.

"I couldn't answer that absolutely at the moment," he told a press conference.

"All I can tell you is that we've got a player that's ineligible for selection.

"When he's available, I can't tell you. I don't have that expertise."

Hall's latest on-field indiscretion came in just his third game back after serving a seven-game suspension for striking West Coast's Brent Staker in round four.

The charge against Hall involving Wakelin came in a game where the Swans forward was clearly frustrated, as he also conceded five free kicks.

He was charged for an incident in the second quarter at ANZ Stadium, when he raised a forearm towards Wakelin.

In laying a charge of attempting to strike, the panel effectively ruled that Hall did not make contact to Wakelin's head even though the Magpie defender fell to the ground.

But the panel deemed the incident as serious enough to warrant a reprimand.

It imposed a two-game suspension, but the Swans have already said Hall would plead guilty and accept a one-game ban, which rules him out of Sunday's game against Hawthorn at the MCG.

But his club-imposed suspension is set to last much longer, as Roos said he was unfit to play.

"We as a footy club just can't put Barry in a position that seems, at the moment, he is not capable of handling that situation," he said.

"(Hall's teammate) Nic Fosdike has a hamstring injury so he's ineligible for selection, and I'm a coach who picks the team that's available for selection.

"At the moment (Hall's) unavailable for selection."

Roos indicated Hall was troubled by something outside football, which was causing anger.

"The main issue for Barry at the moment is to try to get himself in a space where he can perform at the best of his ability and that we don't see those things that he did on the weekend and that he did 12 weeks ago, that we don't see them occurring," he said.

"Prior to 12 to 13 weeks ago we hadn't seen that happen.

"For whatever reason it's happened twice now in the space of 13 weeks."

Roos confirmed Hall would plead guilty to attempting to strike Wakelin.

That suspension came in just his third game since returning from his previous ban, and less than a month after he vowed to prove to people that he was not a thug.

But Roos said he thought Hall, 31, a former co-captain of the club, still had a future with the Swans.

"Absolutely, yeah, I would think so," he said.

"We'll support him as we did after the last incident and we certainly hope to get him back playing with the Swans, absolutely."

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