Ilias Kostis joins Castellon from Atletico Madrid

Cypriot midfielder Ilias Kostis has officially completed a permanent transfer from Atletico Madrid to the Spanish club Castellon. The deal, announced on July 31, 2026, secures the 24-year-old player's future with the team for the next four years.

This move marks a significant transition in Kostis's professional career. Having previously spent time with the team on loan, the midfielder is now finalizing his permanent integration into the squad. The transfer is expected to provide him with the opportunity to establish a consistent role and further develop his performance within the Spanish football system.