A cousin of Manchester United star Marcos Rojo, Geronimo Rojo, has been shot dead during an alleged robbery in Argentina.

17-year old Geronimo and an accomplice, 26-year old Ivan Rodrigo Barbosa allegedly held up a retired policeman, who shot at them in self defense.

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Barbosa was hit in the head and died on the spot, while Rojo was hit in the shoulder and died in a hospital hours later.

According to law enforcement reports, both men had initially tried to rob a taxi, before attempting to rob the policeman, 50-year old Raul Anibal Diaz.

Diaz had claimed self defense after he was arrested, and the case is now under investigation.