Adelaide United's Riley McGree in shock over Socceroos call-up

Adelaide United midfielder Riley McGree says he was in disbelief when told of his inclusion in the Socceroos squad.

The 18-year-old was chosen in coach Ange Postecoglou's 30-man squad for the upcoming World Cup qualifiers after just 12 A-League appearances. "I was lost for words. I didn't know what to say," McGree told reporters on Thursday.

"I didn't really think it was true, to be honest."

McGree started the season merely trying to get some meaningful A-League minutes.

But last-placed Adelaide's woes have gifted the versatile midfielder opportunities.

"Coming into the season, I thought that I would get maybe some minutes here and there," he said.

"But due to some unfortunate circumstances of injuries and players leaving, I was thrown in at an earlier stage than I expected...[it] has helped me get where I am now."

McGree has made an instant impression, with deft skills, high work rate and a touch of tenacity.

"I just like to throw my body around, go in hard," he said.

"I will never come and intentionally start a fight but if it happens I will be in there," he said.

McGree now hopes to make the cut when Postecoglou next week trims seven players from the 30-man squad for World Cup qualifiers against Iraq and the United Arab Emirates.

"It will be a good experience, I will be able to learn from the coaching staff and from the players," he said.

"I think I will just take it all in my stride and grow from the experience and hopefully do well if I get the opportunity."