Crack goalkeeper Michael Theo has declared Brisbane's defence stronger than ever this season, sounding a warning to Western Sydney who'll be looking to score their maiden A-League goal when they face the Roar on Saturday.

The Wanderers are also still searching for a breakthrough win having so far posted a draw and two losses.

However with the Roar's strong home record, an upset victory over two-time champions is a big ask for Tony Popovic's men.

"They've played well in all three game but the result hasn't gone their way," said Theo.

"Suncorp is a great Stadium, a great pitch and I'm sure opposition teams dread coming here.

"We've got a great record there, we seem to play extremely well at home because it's such a big pitch and we can knock it around."

The four-time championship-winning goalie says he's more comfortable this season with coach Rado Vidosic using two number sixes at the back.

"Defensively I think we're a lot more solid this season although we're still a very attacking team and we know we're always good for a goal or two a game.

"Rado has introduced the two number sixes and he likes us to have numbers behind the ball which from my point of view has been great.

"It means more cover and not being dragged out of position as often.

"I've got the best seat in the house and the more players in front of me defending, the better."

The 31 year-old admitted he was looking forward to seeing Japanese star Shinji Ono in action - but not up close.

"He's an international ... I believe he's called 'The Genius' but hopefully we can keep him a little quiet," he said.

Meanwhile Roar officials were quick to play down star striker Besart Berisha's failure to complete an early morning training session on Thursday declaring the Albanian international "good to go" against the Wanderers on Saturday night.

The 27 year-old, who can take over as Brisbane's all-time leading scorer with his 26th goal against the A-League rookies at Suncorp Stadium, was treated for stomach and ankle ailments which forced him to quit the session early.

"It was just a stomach niggle, it won't stop him playing," said a confident Roar official.

Defensive midfielder Erik Paartalu said Berisha was an epic part of everything the Roar did.

"Bes has a habit of carrying injuries into games without anyone knowing and performing at a high standard," he said.

"He's a soldier and he'll fight on."

Berisha has scored 16 goals from his last 15 games at Suncorp Stadium.