The Socceroos have found it harder and harder to qualify for World Cups since Pim Verbeek qualified for South Africa 2010 with games to spare.

Holger Osieck left it to the last 12 minutes against Iraq to book Australia's place at Brazil 2014 and Ange Postecoglou needed to go through two gruelling rounds of play-offs after finishing fifth in 2017.

A move to a 48-nation World Cup would almost certainly have guaranteed the Socceroos could sail into a spot at Qatar 2022, but keeping it at 32 has raised the stakes once more.

"We know it's going to be a difficult challenge," said Arnold today as he unveiled his experimental squad for the firendly against Korea next month.

"But I have all the belief and confidence in this group of players. That's the purpose of this game, to create that depth and give those players that experience of playing international football.

"Bert van Marwijk at Russia 2018 trusted probably 11 or 12 players. I'll go into this World Cup campaign trusting 30."


Sky Blue Wiggle gets Socceroos call up

Sydney’s Wiggles-jiggling penalty shootout hero goalkeeper Andrew Redmayne is one of six new faces in Graham Arnold’s experimental squad for next month’s friendly with Korea.

He added: "I don't see it as the job being harder though. It's a job that's what it always was.

"We're just glad that it's out the way and we can focus on what we need to do and how we expect to do it.

"The World Cup draw for the first phase is on July 16/17 and we'll know the first part of the journey. It is what it is and we'll be ready for that...and we are ready."

Included in the squad are Sydney's penalty shoot out hero Andrew Redmayne and midfield maestro Brandon O'Neill and returns for Josh Brillante and Rhyan Grant among several A-League call-ups including Terry Antonis, Craig Goodwin, Thomas Deng, Chris Ikonomidis, Dimi Petratos and Matthew Spiranovic.