Spiranovic’s Hangzhou Greentown were relegated from the Chinese Super League in 2016 after finishing second last on the table.

The centre-back has returned fully fit after suffering an injury in March when he copped a knee to the quad resulting in a severe cork that required almost two months of treatment.

Coach Ange Postecoglou hinted in Melbourne last week that the standard Spiranovic was playing at was “not ideal”.

“You always want to be striving to play at the top level, but then we've seen on occasions when players have gone to big leagues and have lacked the game time and match fitness,” Spiranovic said on Tuesday morning.

“It's an interesting one. I can only comment for myself, playing regularly and feeling fit and well - that's the positive I'm taking out of it.”

It is Spiranovic’s first time back in the Socceroos since Australia’s 2-2 draw with Thailand in late 2016.

Australia face Japan in Saitama on Thursday night and the defender arrived yesterday.

Spiranovic has one year remaining on his contract with Hangzhou and said the amount he was earning was not a key factor in his decision making.

“Obviously the financial aspect is important for any player,” he said.

“I made a decision to go to the club and I'm happy at the club, they've looked after me, I've captained the team. I'm happy to be there.

“For me, the most important thing has always been about playing games, being fit and well. I've found throughout my career that if I'm playing regularly then I can perform at my highest level.

“That was my main focus and then obviously it's up to the coach to determine if that's at a high enough level to be involved here.

“Once again, I'm grateful for the opportunity and I'm confident I can do a job.”