Socceroos coach Ange Postecoglou is set to produce another selection shock with star midfielder Aaron Mooy expected to be benched for tonight's do-or-die FIFA World Cup second leg play-off against Syria.

Despite Mooy playing a leading role in Australia's 1-1 first leg draw in Malaysia on Thursday, the Huddersfield midfielder looks set to start from the bench, according News CorpĀ reports.

It will mean Celtic midfielder Tom Rogic will start, with Mathew Leckie moving from his central role - where he starred in the first leg - to the right wing, with Josh Risdon missing out.

Rogic the Socceroos X-factor for Syria
From an outsider's perspective, the sight of Tom Rogic on the Socceroos bench at Malaysia's Hang Jebat Stadium was an unusual one.
Socceroos shuffle defence ahead of do-or-die clash
The door is open for Matt Jurman to continue his dream debut Socceroos week after Bailey Wright was ruled out of Tuesday's home World Cup qualifying play-off match through injury.

Meanwhile, Socceroos icon Tim Cahill is expected to start and lead the attack against Syria.

Postecoglou's controversial gamble will come under the microscope should Australia fail to overcome Syria tonight.

The Socceroos need either a win or a 0-0 draw to advance to the final play-off in November, where they will meet the fourth-placed North and Central American side, likely to be either Panama or Honduras.