Socceroos centre-back Matthew Spiranovic said he and his team-mates will embrace their underdog status at the FIFA World Cup.
Australia are given little hope of progressing out of a Group B consisting of Spain, the Netherlands and Chile, with their tournament opener against the South Americans on Friday in Cuiaba.
Western Sydney Wanderers defender Spiranovic said Ange Postecoglou's squad has gelled in the weeks leading into the Brazil tournament, and give themselves every chance of causing havoc in their group.
"We've been working very hard over the last few weeks to better the understanding amongst us in the defence and midfield in particular," Spiranovic told FIFA.com .
"Against Croatia there were a lot of good signs and I think the defensive structure is pretty good.
"We're going into these games as the underdogs and that's fine by us.
"Within the camp and the group there's still a lot of belief that we could go out there and surprise people.
"It's a young team and there's no fear amongst us. I'm confident we can go out there and surprise them."
Spiranovic said Postecoglou, who only took the national reins in October, has a rapport with several of his squad after linking up with them in their junior years.
Postecoglou has long been in the Australian coaching system, leading Australia's Under-20s side for seven years and worked with other junior rep sides, and Spiranovic said their knowledge of the former Brisbane and Melbourne boss would be invaluable.
"It gives you a bit of a head start if players know the coach well, know what style of football he likes to play and his philosophy," Spiranovic said.
"I played under Ange at the U17 World Cup in Peru (in 2005). It was a great experience, playing on such a big stage at such a young age is a fantastic learning experience.
"It always helps the player-coach relationship if they know each other well, and Ange has known me from a young age and I understand what he expects and requires from players, so that is only an advantage for a coach and a player."
Have you signed up to receive Socceroos Insider – Daily?
Sign up now to receive our daily newsletter, delivered at 12pm AEDT each day, featuring all the best news and videos direct from camp in Vitoria Brazil.
For exclusive Socceroo videos from inside the camp in Brazil, head to http://www.socceroos.com.au/videos
And don't forget to get social with the Socceroos
Caltex Socceroos meet young Aussie ‘Playmakers’ in the UAE
The Caltex Socceroos took time out after training to meet with some young Australian fans in the United Arab Emirates last week ahead of Monday’s solid 4-0 win over Kuwait in Kuwait City. The young Australians, who live in the UAE, are part of the AFC Asian Cup UAE 2019’s Play
‘An amazing story’: Patrice Evra leads social media tributes to Mabil, Deng debuts
There was a lot to like about the Caltex Socceroos win over Kuwait on Tuesday (AEDT) but arguably the biggest highlight was the international debuts of youngsters Awer Mabil and Thomas Deng. The pair were both second-half substitutes and combined on the right flanks, with Mabi
Stats review: Breaking down the Caltex Socceroos win over Kuwait
The Caltex Socceroos made a blistering start to the Graham Arnold era on Tuesday morning (AEDT) with their emphatic 4-0 win over Kuwait. The performance and result not only made a big statement of what this Australian team is set to deliver under their new boss, but also snapp
Opposition watch: Korea Republic stays unbeaten despite surrendering lead
Korea Republic’s unbeaten run has continued ahead of next month’s friendly against the Caltex Socceroos after a draw with Panama on Wednesday morning (AEDT). After last week’s impressive 2-1 win over Uruguay in Seoul, the Koreans were held to a 2-2 draw by the Central American