The 35-year old defender is back training with former club Blackburn Rovers but Socceroos manager Postecoglou isn't bothered if he makes his home there or elsewhere - as long as he is playing regularly ahead of the World Cup later this year.
"It'll depend on form, whoever's playing I'll have a look at," Postecoglou said at Federation Square on Thursday.
"If they're playing well, whether that's in the A-League, whether that's in Europe, Asia, wherever that may be, I'll be looking at individuals' form, how they're going and their fitness and they're the key things I'll be looking at.
"To me, that's more important than the competition they're playing in.
"I really need players playing and fit around selection time so for Lucas ... there's some pretty big decisions to come up."
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