US on red alert after Messi given permission to roam

The daunting prospect of trying to contain Argentina forward Lionel Messi has just been made even harder after the two-time FIFA Player of the Year was handed a new license to thrill.

Argentina's newly appointed coach Sergio Batista said on Friday he wants his lethal goal-scorer to expand on his traditional role as a specialist striker and get even more involved in the game.

"What we want from him is to create (in) more games and not be just a striker," Batista, speaking through a translator, told a news conference.

"Out of 90 minutes, he will keep the ball the most that he can."

Batista said his plans for Messi to become more involved were part of his overall strategy to help Argentina win this year's Copa América and the next World Cup, in neighbouring Brazil in 2014, but he wants him to start roaming the field immediately.

That could be bad news for the United States team that plays Argentina in a friendly on Saturday at the new Meadowlands Stadium but good news for the tens of thousands of fans who have snapped up tickets in the hope of seeing Messi produce something magical.

"He's a joy to watch but not much fun to play against," US captain Landon Donovan said.

"But this isn't a game where we're showing up with the other 65,000 people to watch Messi play. We want to win as well."