Socceroos coach Graham Arnold remains unsure as to the scale of changes he will make to his misfiring side ahead of their do-or-die Asian Cup clash with co-hosts Thailand on Monday night.

There will be at least one change, with defender Lucas Neill suspended after being foolishly sent off in the dying seconds of the 3-1 defeat against Iraq on Friday night for picking up a second yellow card for dissent.

But Arnold refused to be drawn on how many others may be shipped out for a match which could end their tournament - suggesting wholesale changes were unlikely despite slamming the team after the Iraq game claiming some players didn't want to be there.

"The fact is you've got to win the game, you don't go out straight away and throw everything out the door," he said.

"If there is going to be changes it will be down to fatigue, injuries and maybe getting some fresh legs on the field because it's only a short turnaround."

Defenders Mark Milligan, Michael Beauchamp and Michael Thwaite, and tricky midfielder Nick Carle are among those pushing for inclusion.

Midfielder Tim Cahill, a livewire when introduced against Iraq and the hero against Oman, is also in the frame to start.

Arnold is under siege from supporters and commentators alike as outrage grows in Australia over how a team who rose to national icon status at the World Cup last year could fall so far so fast.

The Iraq performance was a pale shadow of that produced at the World Cup by the Socceroos, whose invincible aura coming into the tournament has been heavily punctured by a lucky draw with Oman and the dismal loss to Iraq.

But despite their woeful form here, Australia are still in with a chance to advance to the quarter-finals.

Victory over the Thais at Rajamangala Stadium on Tuesday and Iraq taking at least a point from Oman in the other Group A match would send the Socceroos through to the next stage.

That is likely to mean a clash with the other pre-tournament favourite Japan in Hanoi next Saturday, but would require a form reversal of mammoth proportions against the Thais to even get that far.

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