Gaston Aguero plays for Independiente's youth team and is being tipped to follow Sergio to Europe's big leagues.
A Bola says Benfica have been scouting Gaston this season and are keen to bring him to Portugal during the winter transfer window.
"The truth is he's a very nice guy and very humble. He looks like his brother, the way he moves, the way he plays. He's the new Kun," said Independiente teammate Raul Ezequiel Millananco.
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