Ratomir Dujkovic says Ghana's ability to work as a team could see them scale past world champions, Brazil.

Ghana, making her tournament debut are faced with a daunting task to beat tBrazil in their second round game on Tuesday in Wurzburg.

Dujkovic told a news conference ahead of Tuesday's game he was proud of Ghana's achievements and added that the Black Stars' campaign would not necessarily end against Brazil as experts predict.

"I believe in our guys. They have the capability," he said on Saturday after they became only the fifth African team to get past the first round at a World Cup.

"It's very difficult to stop them (Brazil). If you stop Ronaldinho, there is Ronaldo. If you stop Ronaldo there is Roberto Carlos. If you stop (him) there is Kafu so it will be very difficult, very tough.

"(But) the (Brazilians) are not doing so well as before with all these stars. They have excellent individuality. But as a team they are not playing so well as before."

The South Americans opened their campaign with two unconvincing wins over Croatia and Australia but looked far sharper in a 4-1 win over Japan in their third match.

In contrast, Ghana opened their tournament with a 2-0 defeat by Italy before a marked improvement saw them beat the highly-rated Czech Republic 2-0 and the United States 2-1 to become the only African team left in the second round.

Dujkovic is hopeful has expressed his satisfaction with the team's performances so far in the competition.

"I'm very happy and proud of my guys, how they played and... defended the country and the continent," Dujkovic said.

"These are historic results because this is our first appearance in the World Cup and I believe we can do more in the future."

Asamoah Gyan, who missed the game against the U.S. through suspension, said there would be no pressure on Ghana.

"It means an awful lot to me and I am sure I will be excited when the game comes around," he said.

"It's so special to face a team like Brazil in the World Cup.

"But there is no pressure on us. We can be relaxed. We have our own strengths so we have to go out and enjoy the game."