Dortmund young player Konstantinos Karetsas collapses on Champions League debut: Warning for Dortmund's young talents

Today, when the whistle blows for kickoff, an 18-year-old player steps onto the Champions League pitch with great expectations. Konstantinos Karetsas, or Kosta, has been the center of Borussia Dortmund after becoming a notable signing last season. He is one of the young Greek players expected to bring change. But only 25 minutes into the game, when he passed the ball to a teammate, Kosta suddenly collapsed. The scene left everyone on the field in confusion. The score was still 0-0. He signaled to the referee, sat down on the grass, and was taken away on a stretcher by the club's medical staff. The entire match seemed to stop when Kosta was removed. This is an unforgettable moment for those following football.