Sergio Aguero's superb diving header gave Argentina a 1-0 victory over River Plate rivals Uruguay at the Copa America.

Aguero met a 56th-minute cross from his Manchester City teammate Pablo Zabaleta and buried an unstoppable effort past Uruguayan goal-keeper Fernando Muslera at his front post.

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Argentina coach Gerardo Martino was banished to the stands for arguing with the match officials after just half an hour of a stormy encounter which frequently threatened to boil over.

The result left Argentina and Paraguay level at the top of Group B with four points each, ahead of Uruguay on three.

Earlier, a blunder by Jamaica goal-keeper Duwayne Kerr gifted Paraguay a 1-0 win.

Midfielder Victor Caceres played a long ball out of the Paraguay half for Edgar Benitez to chase and Kerr's attempt at a clearing header bounced straight off the striker's thigh and into the net in the 35th minute.

Jamaica, in the tournament for the first time as a guest team and warming up for the CONCACAF Gold Cup in the United States starting on July 7, have no points after they also lost their first game 1-0 to Uruguay.

It was Paraguay's first win in 10 Copa America matches. They reached the 2011 final with five consecutive draws including two penalty shootout wins.

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Argentina face Jamaica in their final group match in Vina del Mar on Saturday while defending champions Uruguay stay in La Serena to take on Paraguay in a repeat of the last Copa America final in 2011.

Source: Reuters