Argentina played some of the dirtiest WC soccer I've ever seen. Grabbing the English goalie's arms during a corner kick, regularly shoving opposing players in the back and grabbing their jerseys when they got the ball during a fast break. The referee only handed out a single yellow card, and let everything else pass.
Messi wasn't doing it so overtly, but everyone else especially Simeone, were just blatant. Have no dog in this race, but that was just gross.