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Keogh was initially fined for disorderly conduct after allegedly causing a disturbance outside a Currie Street club in the early hours of Monday morning.

The 28-year-old was arrested a short time later after allegedly being involved in another incident.

Risdon was also arrested after failing to follow police orders to leave the area.

Both players were released from custody and flew back with the team to Perth on Monday.

The pair are due to appear in the Adelaide Magistrates Court on 19 March.

CLUB STATEMENT | Adelaide Incident. Details here http://t.co/JROw0fhho5 — Perth Glory FC (@PerthGloryFC) February 16, 2015

Glory chief executive Jason Brewer said the behaviour of Keogh and Risdon was unacceptable, and he will meet with the pair on Tuesday to hand down their punishments.

"We've got to sit back, review all the information, and once we've got a complete picture, then we'll determine exactly what disciplinary measures we'll put in place," Brewer said.

"The behaviour appears to be against any of our policies. It was against the national code of conduct and, as such, is completely unacceptable."

Lowe has masterminded a remarkable turnaround of the club's on-field fortunes.

Perth only narrowly avoided the wooden spoon last season after a disastrous campaign that saw Alistair Edwards sacked as coach after a player-led revolt.

Lowe was thrust into the hot seat midway through that campaign, and managed to snare just four wins and four draws in his 17 games in charge.

But the club now sits one point clear on top of the table heading into Sunday's clash with Melbourne City at AAMI Park.

Lowe's one-year contract extension means he is now tied to the club until the end of the 2016-2017 campaign.

However, Glory's best ever start to an A-League season is being overshadowed by its off-field dramas.

The club was issued with a show-cause notice by FFA last week after allegedly failing to include some player perks in its salary cap over the past three seasons.

Perth is likely to escape with a fine over that issue, but the antics of Keogh and Risdon are yet another unwanted distraction as the club attempts to win its maiden A-League title.

"There's no question I'd prefer to be talking about us being top again for the 14th week in a row," Brewer said.

"Unfortunately we've got small matters like this which we need to address as a matter of urgency.

"It's disappointing as a club, but hopefully we'll be able to put it behind us very quickly and focus on the rest of the season."

Defender Dino Djulbic will return from suspension against Melbourne City, while Mitch Nichols is also set to play after recovering from a hamstring injury.

But the potential loss of Keogh to a club-imposed ban would rob Glory of its most potent attacking weapon, with the striker scoring nine goals already this season.