Asian outsiders North Korea frustrated Brazil for long spells of their Group G meeting on Tuesday, but the Selecao scraped to a 2-1 victory in Johannesburg.

I saw the first-half of their match, and North Korea defended really well and annoyed Brazil, they serve as a good example," said Chelsea star Kalou.

"We have the players who can make a difference, our strength will always be in attack, but we must focus on defense.

"When you play against a team that is stronger than you, one has to stop them from playing, and afterwards to play on ones strengths: for us it is technique and catching them on the counter attack."

Ivory Coast, who play Brazil in Sunday, have one point after their 0-0 draw with Portugal.