[1] Rey joined Real Club de Polo in Spain in 2005 and after fifteen consecutive seasons, he will return to Argentina at the end of 2020.

[2] He competed in the field hockey competition at the 2016 Summer Olympics,[3] where he won the gold medal.

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.

[6] This biographical article relating to an Argentine field hockey figure is a stub.