Sikora hasn't played since first injuring his hip last December, missing Perth's first Hyundai A-League finals series.

The former Dutch international had returned to training last month but quickly suffered some minor problems, before having more surgery on his hip last Friday.

Losing the 32-year-old Dutchman was the last thing coach Ian Ferguson needs as he desperately tries to build some winning momentum after just one victory from the last 12 games.

"Victor's had to go in (for surgery), he'll be gone for the season," was Ferguson's simple assessment. "We're looking for an injury replacement as we speak.

"We're getting around the clubs and we're getting around the other agents to see what's available.

"It's very difficult to get somebody in just now 'cause the FFA won't allow you to get somebody who's with another club.

"They'll only allow you if the player is out of contract and at the moment it's very difficult to try that. We are looking and we have had people working on it to try and get a player in as quickly as possible."

Sikora's new problem was just one of several injury blows for Glory last week.

Just when the club thought it had turned the corner after a 3-1 win over Melbourne Victory, central defenders Andy Todd and Jamie Harnwell were cut down by injury at training last Friday, the day before the team flew to Sydney for a 2-0 loss to the Sky Blues.

Ferguson has taken almost the entire squad over to the east coast, as the club's opted to stay on that side of the country ahead of Wednesday night's clash with Brisbane at Suncorp Stadium, followed by Sunday's trip to Townsville to take on North Queensland.

Harnwell is no chance of playing against league leaders Brisbane with his calf injury and has been replaced by Scott Neville, who returns from suspension.

The veteran Glory utility will probably be in doubt for the Fury game as well after a series of calf problems over the last few years.

Todd's hip injury is more severe though but Ferguson  hopes to have the former Blackburn captain available for Perth's December 12 clash with Central Coast Mariners at home.

Ferguson added: "We're hoping it will be okay for him to come back and we've got a 14 day break."