Key Socceroo Mark Bresciano has been mentally drained by a four-month ban from FIFA which endangers his World Cup ambitions, coach Ange Postecoglou says.
Postecoglou says the full ramifications of Bresciano's ban remain unclear beyond Tuesday night's friendly against Costa Rica in Sydney.
But he praised the pivotal midfielder for maintaining his training focus ahead of what could be his last match until April next year.
"It has affected him in terms of his mind," Postecoglou told reporters in Sydney on Monday.
"But it hasn't affected his training. He has been absolute pro so you wouldn't know with Marco.
"But obviously it's not a great situation for us and a decision has to be made as to the course forward because (next year) being a World Cup year, you don't need those kind of things as further complications."
Bresciano was suspended by FIFA for four months and fined $1.9 million for an illegal transfer between clubs in the United Arab Emirates and Qatar.
"From my perspective, the priority has been to see firstly if he's available for tomorrow night and we have got the all clear for that," Postecoglou said.
"And then, post this camp, is to really sit down and see what all the ramifications are and see how we can deal with it."
The 33-year-old has been earmarked for a crucial creative midfield role in Postecoglou's campaign for the World Cup in Brazil starting next June.
Bresciano joined Al Gharafa last August, transferring from Al Nasr in the United Arab Emirates.
But Al Nasr challenged the transfer and FIFA ruled the move broke the sport's laws.
FIFA have yet to publicly explain reasons for their ruling or specify when a suspension would start.
Postecoglou said it was premature to speculate on the World Cup implications for Bresciano if he served the suspension.
"We are kind of crossing bridges that haven't been built yet," Postecoglou said.
"So let's just make sure we know what all the information is."