The experienced Bolivian identifies the Barca man as Argentina's most potent attacking weapon but remains confident that his side can qualify from a tough group
"ll be tough! He [Messi]’s an unpredictable player who you can’t afford to give any space. We’ll have to stick close to him. There’s more man-marking and physical contact here than in the European game, but I don’t think that’ll affect Messi’s performance," Raldes said on the official Fifa website.
"Wherever it is you face him, if you give him space he’ll take you apart with ease. But we can’t make the mistake of thinking we only have to watch out for Messi, they’re all dangerous."
Raldes went on to discuss his side's chances of progressing to the knock-out stage and is confident Bolivia can make it to the next round.
"We've got group matches against Costa Rica and Colombia too, and I think we’ve got a great chance against them. Our aim is to make it through to the next round and also to prepare for  World Cup qualifying, as with Brazil out of the equation it’ll throw the door wide open for every other team."