Group G includes five-time winners Brazil and North Korea as well as the Ivory Coast in what is undoubtedly the toughest pool.

Portugal will kick off their World Cup campaign on June 15 against Didier Drogba's team and Queiroz knows that first match could be all important.

He said: "The group reflects the great and universal dimension of football With Africa, Asia, Europe and Latin America represented.

"There are clearly three teams for two places.

"The line-up shows this. Portugal starts against the Ivory Coast and in such a close test there is no room for error. It may be the key game.

"The first match will be decisive. We have a good chance of beating the Ivory Coast, now we have to prepare ourselves well."

Portugal take on North Korea on June 21 before a mouthwatering tie against Brazil four days later.

And Queiroz knows it could all come down to that final clash.

He added: "If that is the case it would be good, but it is too early to think about it."