Former Western Sydney star Nicolas Milanovic is well aware a move overseas is a gamble that might not pay off.

But the newly-minted Johnny Warren Medallist likes his chances.

With the FIFA World Cup slated for June next year, Aberdeen-bound Milanovic has already taken steps to impress Socceroos boss Tony Popovic.

The winger earned his first call-up to a national team training camp off the back of a stand-out A-League Men season that yielded 12 goals and six assists for the Wanderers.

A move overseas has often stymied the rise of domestic stars and their hopes for a Socceroos spot, but Milanovic is confident he won't be another cautionary tale.

The 23-year-old believes he's ready to test his mettle against some of Europe's best after resisting the urge to move prematurely last year.

He has also worked with Socceroos assistant coach Hayden Fox previously at Western United.

"Obviously, the squad hasn't been chosen yet ... it's just trusting yourself and backing your own ability," Milanovic said.

"I've done that all season and had my doubters and try to prove people wrong.

"I'm now with kind of the big boys of Australia. I'm with some great players here and I want to put my best foot forward and show that I'm good enough to be here."

Fringe Socceroos defender Alessandro Circati has joined the training camp after completing his first full 90 minutes for Serie A side Parma after returning from an ACL injury.

But Dundee United full-back Ryan Strain has returned to Scotland after sustaining an injury.