Buenos Aires, April 19 -- River Plate rose to third in Argentina's Primera Division Group B standings with a 3-0 away win over Gimnasia.
Sebastian Driussi put the visitor ahead on Friday when he fired home from inside the six-yard box following Marco Acuna's floating free-kick.
Teenage midfielder Franco Mastantuono doubled the lead with a superb piece of skill in the 54th-minute.
The 17-year-old dribbled into the box with a driving run from the right wing before cutting onto his left foot - leaving three defenders in his wake - and rifling a low shot that beat goalkeeper Nelson Insfran at his near post.
Rodrigo Aliendro completed the rout with a composed finish from a tight angle after Miguel Borja's pass eight minutes from time.
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