Here, Sports Mole dissects the 90 minutes of action between the two Group A rivals.
On target: 6
On target: 18
Was the result fair?
The statistics point to an extremely one-sided evening of football and although that was the case for long spells, Cameroon did have their moments. Neither side really found their tempo in the early stages, but Cameroon certainly deserved to draw level after 26 minutes when Matip finished from close range. The African side were an accident waiting to happen in defensive areas, however, and ultimately failed to deal with the Brazilian attack. A 4-1 scoreline is perhaps slightly harsh on Cameroon, who did cause the host nation problems, but ultimately their defensive issues cost them once more.
Cameroon have now lost seven consecutive games in the finals of a World Cup and in truth, they will take few positives from this summer's competition in Brazil. They were disappointing against Mexico and Croatia and although their performance this evening, certainly in an attacking sense, was more positive, there are still big problems to address. Head coach Volker Finke left the injured Samuel Eto'o on the bench this evening, but Vincent Aboubakar was a livewire in the first period. For all their attacking football, however, defensively they were a shambles. All four goals conceded could have been avoided, but that said, Brazil looked capable of scoring each time they ventured into the Cameroon half of the field. The host nation were not particularly brilliant this evening, but still managed to score four times, which says a lot about Cameroon's problems.
The home supporters wanted a positive response following the goalless draw with Mexico last time out and that was the case this evening. Even Fred, who has been widely criticised in recent games, managed to get among the goals, but it was Neymar that stole the show once more with a fine brace. Hulk disappointed, but there were a number of impressive performers for the Selecao, with Luiz Gustavo and Oscar both brilliant, especially in the second period. It was an improvement in an attacking sense, but there are still problems defensively. Both Dani Alves and Marcelo were at fault for Cameroon's goal, while Thiago Silva looks the only dependable defender for the host nation. The fact that Luiz Felipe Scolari's side managed to score four times without playing brilliantly is certainly a step in the right direction, however, with Chile to come in the next round.
Sports Mole's man of the match
Neymar: Another international match, another brace for Neymar, who has now scored 35 times in 52 games for his country at the age of just 22. The attacker's first was a brilliant first-time finish into the bottom corner, before he found the back of the net following a mazy run for his second. The Barcelona star was also full of tricks in a performance that certainly pleased the home supporters. If Brazil are to win the World Cup this summer, they will need Neymar to keep producing performances of this ilk.
In truth, it is difficult to pick out just one moment due to some of the defending on display. However, Neymar's second was poor from Cameroon's point of view. While it was a brilliant run from the attacker, the African team's back four simply separated in front of the 22-year-old, while goalkeeper Charles Itandje was some seven yards off his line when the ball eventually found the back of the net. Too many defensive mistakes have cost Cameroon this summer.
It was a fairly straightforward 90 minutes for Jonas Eriksson this evening. The 40-year-old was forced to issue three yellow cards, but was prepared to let the match flow in the correct areas. In truth, the Swede was not seen for long spells, which is always a good sign for a referee.
Cameroon: Cameroon have nothing on the agenda in terms of confirmed fixtures, but must now address the future of under-fire boss Finke.
Brazil: Scolari's side will face Chile in the next round of the World Cup on Saturday.