The two clubs will meet at Allianz Stadium in Saturday's semi-final, with a spot in the 2017/18 Grand Final up for grabs.

Sydney have a remarkable recent dominance over Victory, having beaten them in their past seven encounters including last season's Grand Final on penalties.

The Sky Blues' 1-0 win over Victory a fortnight ago led to Berisha's post-game remark to an unidentified Sydney player, which Arnold said offered his side further confidence.

"We go into the game with a lot of belief," Arnold said.

"When the belief is exceptionally high and Besart tells one of our boys after the game that 'we're such a great team and they can't beat us', it gives us even more belief.

"We're at fortress Allianz. We expect to win."

Jordy Buijs had an injury scare mid-week

Arnold also declared Dutch defender Jordy Buijs fit to play despite an injury scare.

Buijs trained away from his teammates on Thursday after waking up with a sore back.

"Everyone is great," Arnold said. "We've got a full squad to choose from.

"Mentally and physically, we haven't played for 9-10 days, so we're in great shape."