A bunch of next-gen players could earn their first Australian caps in the Socceroos' friendly next month in South Korea.
Scarcely-sighted Scotland-born defender Harry Souttar is on Graham Arnold’s radar after impressing for the Olyroos in March’s under-23 qualifying tournament.
Melbourne City pair Riley McGree and Nathaniel Atkinson are also being closely monitored, as is Ange Postecoglou-era defender Brad Smith.
"Our World Cup qualifiers start in September and it's a last chance for us to explore what else there is out there,” Arnold said.
Spaces will be up for grabs in the Socceroos' squad as Arnold will give a pass to any senior players feeling exhausted after a long campaign, particularly given the rigours of January’s Asian Cup.
Mat Leckie, Aaron Mooy, Mat Ryan, Tom Rogic and Mark Milligan are among those unlikely to be travelling to Busan for the June 7 match.
Arnold said there were opportunities for A-League players to impress through the finals series.
"This top-six series is about pushing the case forward again,” he said. "I've watched every league game since I've been back from the Asian Cup.
"I've seen young boys come through and do exceptionally well … you'd like to see how they perform an international level."
Arnold name-checked Souttar, McGree, Atkinson and Thomas Deng as players in his thoughts after performing well for the Olyroos in Cambodia.
“(Souttar) is 198cm. He's a big boy and he's good on his feet ... like he's a grown man already,” he said.
“He's on the radar as well as McGree and Nathaniel Atkinson did well. Thomas Deng. There's some good young kids that just need to be exposed.
"There's nothing better than to test them against a team like South Korea away for what's ahead of us in the next few years."
Souttar, 20, has a brother with three caps for Scotland and plays for Fleetwood Town in the English third tier.
He has no history with Australian football prior to March's qualifying series but is eligible through his Australian-born mother.
While Milligan, Australia’s captain at the Asian Cup, is unlikely to be named, Arnold said that shouldn’t be seen as the 33-year-old signing off from the international arena.
He added: “If he's performing well and he wants to keep playing, why wouldn't he keep playing for at least at least for one more year, to help the growth of the Socceroos."