The Portuguese need only a point from the game in Durban to be assured of joining Brazil in the last 16 of the FIFA World Cup™. "We play against the highest-ranked team in the world," said Queiroz. "They have tremendous organisation. They are a very solid team, full of outstanding players. I think it's going to be a very difficult game for both sides."
Queiroz's side could lose and still go through as their 7-0 triumph over Korea DPR ensured their goal difference is far superior to Côte d'Ivoire - the only side that can end their FIFA World Cup adventure. However, Queiroz insists his players will go out for the win, determined to top their group.
"Brazil has already qualified and we, on the other hand, still have to progress," he said. "We are going to try to change the rhythm of Brazil. We are not going to play for a draw but we are going out to win."
Despite the absence of star player Kaka through suspension, Queiroz believes Dunga's side is still a team to be feared. "It has always been Robinho, Luis Fabiano and Kaka," he said. "What is important to know is who will replace Kaka to conform the golden trio tomorrow."
A triumph over Brazil would be a major boost in confidence. "Any victory against Brazil is always an excellent result for any team," said Queiroz. "But even a draw for that matter. We just have to use all of our skills and technique."
Queiroz says his team will not go out to avenge their 6-2 defeat they suffered at the hands of Brazil the last time the two nations went head to head, in a friendly in Brasilia back in 2008. "We have nothing to avenge," he said. "The past doesn't count because this is a World Cup. We cannot live in the past. We've played many games during this time.
"When we last met them, we had only had opportunity to train for 10 days as a group. We have played 25 games since then and we are unbeaten in 17 matches and have not conceded a goal in 21 games."
Queiroz believes his team's mauling of Korea DPR has not made his team over-confident. "When you are able to win 7-0, it's great cause for celebration because it's uncommon today for that to happen," he said. "But Brazil is not North Korea. We just hope to be able to play good football, spectacular football because that is what the World Cup is all about."
Despite being a booking away from missing the knock-out round should his team qualify, Queiroz will not save star player Cristiano Ronaldo. "Portugal are playing with a view to qualify," said Queiroz. "Ronaldo has to play his normal football and play just as he did in the game where he picked up a yellow card."
Queiroz will be without injured Deco, with the Brazil-born midfielder still struggling with a hip injury. "All of my players are available with the exception of those two," he said. "We hope and believe that Deco will be able to recover in time for the knock-out round."
Regardless of the result, Queiroz believes the fans at the Moses Mabhida stadium can expect to be treated. "Even our friendly games against them, it has always been great entertainment," he said. "But anything can happen. We will try to erase the prestige of Brazil and honour our country."