Socceroos utility Matt McKay faces another week on the sidelines, missing the chance to replace the suspended Liam Miller in the Brisbane Roar midfield.

A-League leaders Brisbane have highlighted their abundant depth after brushing off the dual loss of midfield stars Matt McKay and Liam Miller for Sunday’s clash with bogey side Newcastle.

Roar coach Mike Mulvey had hoped to finally have McKay back from his lingering ankle injury for the Suncorp Stadium encounter but now must wait another week.

The Socceroos utility was only walking at training on Wednesday morning and the club has conceded he’s set to join the suspended Miller on the sidelines.

The loss of two key players with their experience and ability would be a crippling blow to most A-League clubs but Brisbane goalkeeper Michael Theo dismissed any concerns.

Theo said the recently-returned Steve Lustica or Diogo Ferreira, who shone against Central Coast two week ago, were primed to fill former Irish international Miller’s boots.

“Obviously we’d like to have Matt back in there but hopefully he’ll get himself fit and back into the squad some time soon,” he said.

“We’ve had a lot of injuries and suspensions through the year and whoever has stepped in has done the job.

“As far as depth (goes), we’ve got it in abundance.”

German playmaker Thomas Broich worked his magic in the midfield in the 1-1 draw with Western Sydney but can also interchange with the flexible Ivan Franjic on the left wing.

Theo said the mid-season signing of Lustica from Adelaide, as well as 2010-11 premiership striker Jean Carlos Solarzano, had given the squad a 10 per cent lift.

The struggling Jets are the only team to have beaten Brisbane twice this season, including a 2-0 defeat in their last visit to Suncorp Stadium.

But Theo denied Newcastle, who will be without the suspended Joel Griffiths, held a psychological edge over the Roar.

“It’s a new game, a new challenge, and it doesn’t matter what went on in the past.”