TERESOPOLIS, Brazil (AP) -- Brazil faces what should be a relatively simple task to advance past the group stage at its home World Cup - draw or beat a Cameroon team that is playing its last match before flying home.

But in a tournament already full of surprises, Brazilian players are wary ahead of Monday's game in Brasilia.

They believe that playing a team with nothing to lose is certainly going to prove more difficult than most people expect.

''We will be facing a team that comes without any responsibility,'' Brazil defender David Luiz said. ''Their players will want to show that they can do better than they did in the first two matches. A victory against the hosts would be like a title to them.''

Brazil leads Group A with four points from two games ahead of the decisive matches of the pool phase. Mexico also has four points, but it trails on goal difference. Croatia, which plays Mexico in Recife on Monday, has three. For the hosts, the permutations range from winning the group to a shock exit, depending on results.

''We know the match will be very difficult because our rival will be playing without any pressure on them,'' Brazil left back Dani Alves said. ''They can't advance but they will be playing against Brazil, in Brazil, in a World Cup.''

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Elimination at this stage would be unthinkable for Brazil, a team widely considered as a tournament favorite to win the title. Along with the benefit of home support, Brazil came into the finals boosted by a triumph in last year's warm-up event, the Confederations Cup, as well as victories in 15 of its last 16 matches.

But after early exits by defending world champion Spain and England, as well as surprises by teams such as Costa Rica, which has beaten Uruguay and Italy, Brazilians know better than to take things for granted.

''Cameroon will be playing for pride,'' Luiz said. ''Their players are still representing their nation and they will want to leave the World Cup by beating the hosts. We know that we will be facing a team that still wants to play well.''

Cameroon began the tournament with a 1-0 loss to Mexico and a 4-0 defeat to Croatia. Brazil opened with a 3-1 win over the Croats before being held to a 0-0 draw by Mexico.

''It's going to be another difficult match because we know Cameroon still has a team with a lot of quality,'' Brazil defender Marcelo said. ''We need to respect them.''

The Africans will be without defensive midfielder Alex Song, who was red-carded against Croatia, and it remains unclear if striker Samuel Eto'o, the team's best and most experienced player, will recover from a right knee injury.

To make things worse, Cameroon's football federation said it could still punish some of the players for a scuffle late in the match against Croatia. Benoit Assou-Ekotto head-butted teammate Benjamin Moukandjo in what the federation described as ''disgraceful behavior.''

''The recent acts of violence that took place during the match against Croatia do not reflect the values of fair play and respect as promoted by our federation,'' it said Friday.

Brazil coach Luiz Felipe Scolari will be able to count on striker Hulk, who wasn't fully fit for the match against Mexico because of a left leg injury. But Scolari has hinted he might make more changes to the lineup after the team's disappointing draw against the Mexicans.

Brazil has four players going into the match with a yellow card, including Neymar and captain Thiago Silva. Another yellow against Cameroon would rule them out of the round of 16, when Brazil would face either South American rival Chile or the Netherlands, its nemesis from the quarterfinals of the 2010 World Cup in South Africa.