Argentina and Sergio Aguero sent out a warning ahead of the upcoming Copa America after they beat Bolivia 5-0 at the San Juan del Bicentenario.The Manchester City striker scored a hat-trick while Angel di Maria bagged a brace as Gerardo Martino's side punished a poor visiting side.The home side wasted a number of chances before they took the lead after 25 minutes when Di Maria smashed home an effort past goalkeeper Romel Quinonez from just outside the box.Aguero had hit the post early in the encounter but he was not to be denied from the spot after 28 minutes after Ezequiel Lavezzi was fouled in the box by Sebastian Gamarra.The deadly striker was on hand 60 seconds later to poke the ball home from close range after Di Maria's cross.Aguero completed his treble six minutes after the restart when he beat two defenders and fired low beyond Quinonez.And DI Maria completed the scoring two minutes later when Miguel Hurtado was adjudged to have handled in the box and Di Maria stepped up to fire home.Argentina begin their Copa America campaign against Group B opponents Paraguay on June 13 in Chile.ends