Perth Glory coach Tony Popovic says he would love Spiranovic to return to the club, but he'll give the star defender plenty of time to mull over his next move.

Spiranovic played a key role in helping Glory claim last season's Premiers Plate, with his strong form landing him a Socceroos recall.

The 31-year-old's one-year contract with Glory is now over, and he's deciding what to do next while holidaying in Europe.

Popovic is quietly confident Spiranovic will return to Glory if the veteran chooses to play in the A-League next season.

But Spiranovic might attempt to land a bigger-money deal elsewhere.

"I have a good relationship with Matty. We speak quite regularly ... about many things in life," Popovic said ahead of Wednesday night's FFA Cup clash with Western Sydney.

"He's trying to work out what he wants to do next in terms of football.

"He's been through a lot. He's had a fantastic career. He's had a lot of injuries.

"I've worked with him twice now as his head coach, and if we get a chance to work with him again, we'd all love that.

"There's no time frame on anything like that. We'll just go day by day and week by week."

Glory have bolstered their defensive stocks with the signing of Osama Malik on a three-year deal.

Malik, who can operate as a central defender, full-back or holding midfielder, is a crucial signing as Glory attempts to shore up a new-look defence.

Wing backs Jason Davidson and Scott Neville have already left the club, while central defender Dino Djulbic is nursing a torn anterior cruciate ligament from last season's grand final and is no certainty to play again for Perth.

Another high-profile player to have left the club is striker Andy Keogh - but the exact nature of his parting remains unclear.

Keogh claims he took an opportunity to join a team in Saudi Arabia after falling "out of favour" at Glory.

But Popovic saw it differently.

"There's always a story and there's always the truth. Sometimes the story sounds better than the truth," Popovic said.

"He's been a fantastic servant for the club. He scored 15 goals for the club last season.

"Due to that he's got this great opportunity in Saudi Arabia, and we wish him all the best.

"He got an opportunity and he's taken that opportunity and the club's allowed him to leave, a bit like Jason Davidson as well."