While World Cup qualification is safely secured, Australia's involvement in the 2011 Asian Cup is anything but guaranteed at this stage.

Two group games, with largely A-League players selected for the clashes, have yielded just one point and Pim Verbeek has labelled tomorrow's night's match as a must-win.

Despite the blow of losing Vince Grella to injury, Australia are still expected to be too strong for Oman.

TAB Sportsbet have Australia priced at $1.33, the draw is $4.75 and Oman are $7.50 for the win.

Centrebet have the Aussies at $1.36, the draw is $4.35 and an Oman win is on offer at $8.50.

Sportsbet have Verbeek's boys at $1.40, the draw is $4.25 with the visitors priced at $7.50.