Manchester City fullback Pablo Zabaleta is convinced Argentina are getting stronger at this month's World Cup.

Zabaleta believes Argentina are getting better by the game and is hopeful that evolution will continue in their first knock-out match against Switzerland.

"We should be happy with our results so far," the Manchester City right-back said. "It's not easy to take nine points from three games at the World Cup.

"What's most important, though, is that we're improving as the tournament progresses. Against Nigeria we played better than we had in the previous two games, which was our objective. From now on the slightest mistake can send you home.

"I think we've been playing well. Because of our style of play, we sometimes leave a lot of space for our opponents to exploit on the counter-attack, which is never easy for a defender.

"But that's our philosophy, and we've had two years of good results playing this way."

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