Australia skipper Mark Viduka is confident his side can pull off the biggest shock of the 2006 World Cup by beating world champions Brazil.
Viduka helped the Socceroos to a 3-1 win over Japan
The Socceroos face Brazil in Munich on Sunday in Group F and Viduka said: "The game against Croatia showed that they are vulnerable in places.
"I thought Croatia should have got something out of that game. I thought they were the better team.
"There're not superheroes or anything like that. They're people like us."
Australia are competing in the World Cup finals for the first time since 1974 and for only the second time in their history.
However, they got off to a fine start with a 3-1 win over Japan in their opening game, while Brazil struggled to a 1-0 win over Croatia.
But Australia face a different test altogether when they come up against the holders Brazil.
Australia and Blackburn midfielder Brett Emerton added: "We're excited, I think, more than anything.
"I don't think people expect us to go there and win. Although we believe in our ability and believe we can get a result."
I don't know what's going on in their team - our television is in German, so I don't understand it
The versatile Emerton could line-up as a right wing-back on Sunday, which could mean facing Ronaldinho.
"It's an exciting prospect," added Emerton. "And a scary one as well."
But Liverpool winger Harry Kewell was remaining calm ahead of the game.
He added: "I think that's the Australian way. Take it easy. There's no point wasting energy, the game's not until Sunday. So why start to get pumped up now?
"Obviously there is a little bit of respect because they are world champions, but you just go out there and you play to what you're capable of playing.
"You're not going to go into a game thinking you're going to lose. You're going to go in thinking you're going to win it, and that's how we are going to start."
Brazil have come in for some fierce criticism following their narrow win over the Croats, in particular striker Ronaldo's lethargic efforts.
But Middlesbrough star Viduka said the Socceroos were not paying any attention to the hype surrounding the Brazilians.
He added: "I haven't even watched the news or anything like that. I had a day-and-a-half off.
"I saw the family and stuff like that. I don't know what's going on in their team at all. And our television is in German, so I don't understand it."
Australia defeated Brazil 1-0 the last time they met in the third-place match at the 2001 Confederations Cup in Japan.
Brazil fielded an understrength team at the tournament and coach Emerson Leao lost his job immediately after.