[3] Freytes played in the academy of Newell's Old Boys, with the defender featuring for the club's youth teams including the U17s in a friendly against the United States U17s in June 2017.

[3] In the summer 2021, Freytes was loaned out to Independiente Rivadavia until the end of 2022 with an option to purchase 80% of his rights, for a fee around one million dollars.

[5] In 2024, signed this year by Alianza Lima, Juan Freytes played 40 games, scored four goals and provided four assists.

[6] At the end of 2024, Freytes was acquired by Fluminense, one of the clubs he faced while playing the Copa Libertadores 2024 group stage with Alianza.

Freytes received a call-up to train with the Argentina national team in August 2017, ahead of friendlies with Uruguay and Venezuela.