Diaz: Paraguay won't man-mark Messi

Lionel Messi is expected to cause Paraguay plenty of problems in Argentina's Group B opener.

Paraguay coach Ramon Diaz is braced for Saturday's clash against Lionel Messi, though he has no plans to man-mark the Argentina captain.

Diaz and Co. will open their Group B campaign against Copa America favourites Argentina at the Estadio La Portada in La Serena, with Messi fresh from leading Barcelona to the UEFA Champions League title and a club treble.

Messi ended his Barcelona season with 58 goals in 57 matches in all competitions and Diaz said Paraguay will be watching the 27-year-old closely.

"We won't personally mark him, but we'll tighten on him," Diaz said. "We'll try to make Messi not as comfortable as we've seen in some games.

"He's a very smart kid. He has intelligence and the ability to play on the sides or in the middle. He knows when to walk, when to recover and when to participate. A lot will depend on our concentration when he receives the ball.

"With a tough team, we can move in all sectors. We must counter Argentina."

While Messi will lead the way for Argentina, Gerardo Martino has a plethora of options, with Sergio Aguero and Angel di Maria amongst a number of stars at his disposal.

And if he was given the chance to select a player besides Messi, Diaz would happily utilise Di Maria's services.

"The pace and dynamics he has, not many have these characteristics in the world," Diaz was quoted as telling Ole.

"[Javier] Mascherano was rightly praised a lot at the last World Cup, but central midfielders are plenty.

"I look for attackers. If [Argentina] don't want to start [Carlos] Tevez, I'll use him for 45 minutes!"