Borussia Dortmund confirm the signing of 18-year-old Greek international Konstantinos Karetsas from Belgian club KRC Genk. Yahoo Sports reports the club announces the move and that Karetsas joins Dortmund as an attacking player, with terms described as a contract running until June 2031. NDTV highlights that Dortmund pay a significant fee for the teenager, describing the transfer as the club’s second most expensive signing of all time. The sources agree that Karetsas is a young forward/attacking midfielder-type talent and that he moves directly from Genk to Dortmund. While the outlets focus on different aspects—NDTV emphasizes the transfer cost and club record, while Yahoo Sports focuses on the confirmation and contract length—they present the same core facts: Dortmund secure Karetsas, he is 18, he is Greek and has international experience, and his deal is set to run through 2031. Dortmund’s announcement is dated Monday in the Yahoo reporting, indicating the move is part of the club’s current transfer activity.