Juan Antonio Portales Villarreal (born 16 May 1996) is a Mexican professional footballer who plays as a centre-back for Scottish Premiership club Dundee.

[1] He made his debut for the club in a Scottish League Cup group stage win over Dumbarton.

[2] Portales went off within minutes of his Scottish Premiership debut at home to Motherwell after injuring his knee, which would leave him sidelined for several weeks.

[5] After establishing himself as a mainstay in the Dee defence, Portales suffered a hamstring injury in a December game away to Rangers which would keep him out for 10 to 12 weeks.

[9] Portales opened his scoring account for the 2024–25 season on 13 July 2024 with a goal in a 1–7 away victory over Bonnyrigg Rose in the Scottish League Cup group stage.