A Neymar penalty in the third minute of the injury time ensured a 2-1 victory for Brazil of Argentina in the first leg of the 'Superclasico of Americas'.
Argentina took the lead after 19 minutes when a good team move involving 12 passes was finished off by Juan Manuel Martinez's volley.
However six minutes later Paulinho headed in following a precise free-kick from Neymar, who hit the winner from the penalty spot.
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The second leg will be on October 3 at the Bicentenario stadium in Resistencia City, Argentina as Brazil bid to retain the Dr Nicolas Leoz trophy.