CD Castellon have completed the signing of Jari Vlak, captain of ADO Den Haag, to strengthen their midfield. The Dutch midfielder joins the albinegros club on July 8, 2026, after passing his medical, for around €500,000 plus performance-related bonuses.

What happened with Vlak’s transfer?

CD Castellon officially announced Jari Vlak’s arrival following his medical check. The transfer fee was set below the €600,000 some Dutch outlets had floated earlier in the day. The 27-year-old arrives on a free transfer after his contract with ADO Den Haag expired, where he served as captain and was named the league’s best player last season.

Vlak becomes Castellon’s marquee summer signing. The club is targeting a midfield upgrade, and the Dutchman brings exactly that: leadership, experience, and a proven track record. He arrives with 387 career appearances, 55 goals, and a competitive pedigree despite playing in a deep-lying midfield role.

Why does this signing matter for Castellon?

Vlak’s profile matches exactly what Bob Voulgaris is building. The Dutchman stands 1.91m tall, covers ground relentlessly, and excels in both recovery and forward runs. That makes him the ideal two-way midfielder for a Castellon side aiming to stabilize in Segunda División.

The move comes at a pivotal moment. After a season where Castellon battled relegation, the club is doubling down on experience at the level. Vlak’s time in the Dutch second tier means he’s already battle-hardened for the demands of Spanish football.

What’s next for Vlak and Castellon?

The midfielder will join the squad in the coming days to complete pre-season training. His competitive debut will depend on Voulgaris’s squad planning, but his arrival has already sparked excitement among the albinegro faithful. Castellon head into the new campaign with renewed belief—and a midfield that just got a lot stronger.

The club has not yet revealed his squad number or confirmed his involvement in the opening fixtures. What is clear is that Vlak is expected to start from day one. His presence, experience, and leadership will be vital for a team pushing for a higher finish in Segunda División.