Brazil forward Hulk
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Gary Lineker's guide to Group A

12 June 2014 Last updated at 06:40 BST

The World Cup kicked off on Thursday with Brazil v Croatia opening the tournament.

They're in Group A along with Mexico and Cameroon.

Watch Match of the Day presenter Gary Lineker predict which two teams will progress to the knock out stages.

More to see: All Newsround's World Cup stories