Betting: Can the Socceroos keep Saudi Arabia out?

All three of Australia's wins in Group B have come when they've kept their opponents scoreless but the Green Falcons haven't been thwarted yet

Keeping a clean sheet in Adelaide could be the most important factor for the Socceroos if they are to beat Saudi Arabia in their World Cup qualifier on Thursday.

Australia's three wins in the third phase of qualifying in the Asian Football Confederation have all come when Ange Postecoglou's men have kept their opponents scoreless.

The Socceroos started Group B with a 2-0 win over Iraq and a 1-0 triumph away to United Arab Emirates.

Four straight draws - none of them scoreless - followed but they got back on track with a 2-0 win over the UAE in Sydney in March.

Saudi Arabia have scored in every game they've played in this phase but the Socceroos have only conceded in two of their past nine World Cup qualifiers on home soil.

A clean sheet for Australia is worth $2.00 at bet365 , while the bookmakers believe the hosts are more likely to concede at Adelaide Oval, rating that option at $1.72 .

Socceroos to keep a clean sheet at $2.00

Socceroos to draw with Saudi Arabia at $4.50

Punters can back Saudi Arabia to keep a clean sheet at $7.00 and Postecoglou's men to score at $1.10 .

In terms of the result, the Socceroos ( $1.36 ) are the favourites, with the draw ( $4.50 ) and a victory for the visitors ( $9.00 ) at much longer odds.

A win for the home side would take them at least level on points with Saudi Arabia in Group B, while a two-goal margin would move Australia into the automatic qualifying berths for Russia 2018 with two games remaining.

*Prices subject to change