Hrustic's journey back into the Groningen starting XI after losing his spot in October has been unique, utilising the opportunity to get away from his club to play under-age international football.

“It all started with the Under-23s when I went with the national team to China," he said.

"I thought I played quite well there. We obviously didn’t get what we wanted but for me personally it wasn’t only a good experience, it led back to my club who were happy.

"Since then I’ve got a chance to play and I think I’ve played almost every game this half of the season.

“I lost my spot once I got sent off in October.  The manager was obviously disappointed, and I was also, but he gave me a second chance.

"We spoke about going to the Under-23s and the club wasn’t that keen on letting me go. I managed to sit down with the manager and speak to him.

"He said 'what’s going to be good for you and bring back your self confidence?'. That’s what it has done.

"I felt like I played an important role with the Under-23s. Ante Milicic gave me an important role there.

"The manager has seen all the games and seen a different side of me and given me a second chance and I think I’ve taken it well."

Milicic, who is also the Socceroos assistant coach, was similarly impressed with Czech Republic-based defender Aleksandar Susnjar who earned his first Australia call-up in Bert van Marwijk's maiden squad to face Norway and Colombia.

Hrustic is hoping he's in a similar position, buoyed by his Young Socceroos performances.

“I’m hoping for that," he said. "That was also a reason why I spoke to the club and decided to take a step down and go to the Under-23 Championships. 

"The manager understood that and I spoke to Ante and I told him what my hopes are.

"I told him I’d give it everything for this tournament and I'm hoping that it would pay off for the World Cup.”