The 22-year-old former Melbourne Victory defender joined  Norwich City on loan earlier this month after failing to break into Roy Hodgson's side.

He told AAP: "I'm not thinking about Socceroos at the moment.

"My main focus is trying to breakthrough in Europe and hopefully I'll get my (international) break at some stage.

"I'd love to play for the Socceroos but it's something at this stage that is further down the track."

The youngster will undergo surgery at the end of the season to resolve chronic tendonitis.

There is much talk that a Socceroos win over Uzbekistan (combined with favourable results elsewhere) could see Pim Verbeek give players a chance to impress in June's ties against Qatar, Bahrain and Japan if all three matches effectively prove to be dead rubbers.

However, Leijer will opt for surgery at the end of the season, once his season is over at Norwich.

He said: "I've been carrying a knee injury for quite some time and as soon as the season is finished I'm going to get that cleaned out.

"That'll rule me out of those Socceroos games. It's an important thing to do to try and get rid of it for good. A decent break will be good physically and mentally."

Leijer is happy again but admits returning to Fulham from Olympic duty hadn't been easy.

"I found it very hard to get up for reserve games. When you're used to playing in front of 25 or 30 thousand every week at Melbourne, to be playing in front of 200 people was very hard.

"I'm one of those players that needs the crowd to perform at my best. Just being involved in the last few weeks at Norwich has given me that buzz again," he said.