He was part of the Argentine team that finished in 10th position at the 2012 Summer Olympics.[2] He played for the Argentine team that won the bronze medal at the 2014 Men's Hockey World Cup, beating England in the bronze medal playoff.[3]
He was the starting goalie in the 2016 Summer Olympics where he won the Gold medal after defeating Belgium 4-2 in the Final.
Juan Manuel has also won three medals at the Pan American Games and two Champions Challenge. In July 2019, he was selected in the Argentina squad for the 2019 Pan American Games.[4] They won the gold medal by defeating Canada 5-2 in the final.[5]