Goalkeeper Mat Ryan and midfielder Dario Vidosic on Tuesday said they could not wait to get stuck into opening World Cup opponents Chile on Friday in Cuiaba.

Last Friday saw the Socceroos make fellow qualifiers Croatia, Brazil's opening day rivals, work hard for a single goal win in their final warm-up and Ryan and Vidosic said nobody could doubt Australia's will to succeed.

Most observers don't give Ange Postecoglou's side a chance against the Chileans, led by Barcelona star Alexis Sanchez, or other group rivals Spain, the world champions, and Holland.

But Ryan, who plays in Belgium with Club Brugge, said the team was itching to do battle.

"I just can't wait for Friday to start -- just let the excitement take over.

"Everyone's fairly relaxed at the moment. But I dare say that's about to change in the coming days," said Ryan, 22.

On the 1-0 loss to Croatia in Salvador last week he said: "I thought definitely our structure was really good -- we kept the spaces in between the lines tight."

Regarding facing the likes of Sanchez he told reporters: "It's a little bit daunting but you have no time come the day of the match to be in awe of them. If that happens I'll probably be picking the ball out of the back of the net."

Osijek-born attacking midfielder Dario Vidosic of Swiss side Sion said the whole squad was desperate to show their mettle and get game time.

"We're just tying to give the coach as many headaches as possible. Every single one of us just can't wait," he said.

"We're living the dream -- we just want to die out there for each other. That's how we're going to play.

"We don't care who we're up against. There can be 11 Ronaldos or Messis out there. We want to make everybody proud back home. We've worked very hard to get to this stage," the 27-year-old said.

"By the time kick off comes round we'll be 100 percent ready to go. We've got three guaranteed games and we're just going to give it everything that we can to get out of the group stage," which the Socceroos managed in 2006.