Milton Nahuel Valenzuela (born 13 August 1998) is an Argentine professional footballer who plays as a defender for Swiss club Lugano.

[4] Valenzuela made his debut for Columbus on 3 March 2018, playing 90 minutes in a 2–0 win against Toronto FC.

[7] However, despite an encouraging preseason, Valenzuela suffered a tear in his ACL during training and would be out for the entirety of the 2019 season.

[10] On April 28, Valenzuela scored his only goal of the season against Monterrey in the 2021 CONCACAF Champions League quarterfinal.

[13] He admitted that there was a learning curve that comes with moving from Argentina to the United States, while also living by himself for the first time.