Speaking ahead of Saturday's friendly against Korea Republic in Brisbane, Arnold was asked about Australia's national team travails in light of the Wallabies' on-field struggles and the cricket team's 'sandpaper' saga.

"There's no team in the country that unites Australia more than the Socceroos," Arnold said.

"Every four years, AFL fans, rugby league fans, rugby union fans, cricket fans, all get united behind the Socceroos.

"I truly believe the Socceroos is known more around the world than those other teams.

"But at the same time we, as the Socceroos, have the greatest respect for the Kangaroos, Wallabies and we wish them all well."

Arnold has only been in charge of the Socceroos for four months, but said he was excited by the culture change within the group. 

"For us it's about what we can do," he said.

"We've worked alot on the 16-17 days that I've been in charge on the pitch in creating an exciting style but also off the pitch the boys have done a fantastic job rebuilding the culture with the team and the group.

"So far so good."

Kick-off between Australia and Korea Republic is 6:50pm local time (7:50pm AEDT).