Arsenal hero Emmanuel Petit has slammed Barcelona star Leo Messi after Argentina's shock World Cup defeat to Croatia.

Messi looked stressed as the Argentine national anthem was played to the players ahead of the fixture, and failed to get a foothold on the match.

Speaking to Paddy Power News, Petit said: "Excuse my language, but Argentina look s***. It was shameful to watch them."

"To see Messi walking with his head down, he should be ashamed.

"I don't feel sorry for him, either. I think Messi should wake up a bit more, because when things don't go well for him, he's always down on the pitch, he shows no reaction.

"He's not there anymore. He's not running, he's walking. He's not concerned about the ball. Come on."