Konstantinos Karetsas transfers to Borussia Dortmund

On August 3, 2026, 18-year-old Greek international midfielder Konstantinos Karetsas officially joined Borussia Dortmund. The player signed a five-year contract that will keep him with the German club until June 30, 2031. Borussia Dortmund reportedly paid 35 million euros to Genk, potentially rising with bonuses, marking the most expensive sale in the Belgian club's history. Karetsas has been assigned the number 19 jersey.

The club announced the signing through a creative social media campaign featuring an event at a Greek souvlaki restaurant in Kamen, Germany, named 'Olympia Grill', where the player was introduced to fans. In his public statements, Karetsas expressed pride in joining the team and gratitude toward Genk fans for their support over the past two years.

Background information indicates that Dortmund scouts had been monitoring Karetsas since 2023. While reports initially mentioned a base fee of 35 million euros, some sources note that the agreement also includes a future sell-on percentage for the Belgian side. The player is now set to integrate into the squad as he prepares for his debut in the Bundesliga.