Australia have been dealt a blow ahead of Tuesday's FIFA World Cup™ qualifier against Thailand after Harry Kewell was ruled out through injury.

Kewell was hurt during yesterday's shock 1-0 loss to Oman in Muscat and was replaced in the 54th minute by Robbie Kruse.

The Melbourne Victory star was found to have aggravated a muscle strain and coach Holger Osieck and medical staff agreed to let the 33-year-old return home for treatment. The extent of the injury is unclear at this stage.

Australia need at least a point from their remaining two matches to book their place in the next round of qualifying.