Karetsas Scare Overshadows Dortmund's Champions League Win
Borussia Dortmund left Spain with three points and a knot in the stomach.
On a night meant to showcase a new era of young talent, 18-year-old Konstantinos Karetsas was rushed to hospital after collapsing during his Champions League debut against Villarreal, turning a high-stakes group game into something far more sobering.
A routine pass, then panic
The moment itself was chilling in its simplicity. Karetsas received the ball, played a routine pass into midfield and then, almost immediately, something was wrong.
He slowed. He signalled urgently to the referee. Then he sank to the turf, sitting down on the grass as players and officials around him realised this was no ordinary injury break.
Medical staff sprinted on. Signal Iduna Park’s latest prodigy, barely weeks into his Dortmund career, suddenly became the centre of a very different kind of attention.
Dortmund moved quickly to calm the growing anxiety. In an official statement, the club confirmed the problem was related to his circulatory system, explaining: “Konstantinos Karetsas had to leave the field due to circulatory problems. Kosta is doing well under the circumstances and is on his way to the hospital for further tests.”
It was reassurance, but only up to a point. The images had already done their damage.
Dressing room on edge
After the final whistle, Gregor Kobel gave voice to what everyone in yellow and black was thinking.
“I hope and I think that everything is OK and I hope that he's back and fit with us soon,” the goalkeeper told broadcaster Amazon Prime, his words carrying the concern of a dressing room that had watched a teenager’s dream debut unravel in seconds.
This was supposed to be Karetsas’ grand European introduction. Instead, it became a night defined by sirens and updates from the medical room.
Big-money bets, brutal luck
Karetsas arrived in the summer as one of the centrepieces of Dortmund’s aggressive push for elite young talent. Signed from Genk for around €30 million (£25.7m/$34.9m), the former Belgium youth international was paired with fellow Greece international Giannis Konstantelias, who joined from PAOK for €26m (£22.3m/$30.2m).
Two marquee signings. Two players earmarked to drive Dortmund’s European campaign for years to come.
The reality so far has been merciless.
Konstantelias’ season is already hanging by a thread after he suffered a serious ACL injury on his Bundesliga debut last month, a blow that likely rules him out for the remainder of the campaign. Now Karetsas, the other half of that ambitious summer double move, is undergoing tests in hospital after his alarming collapse in Spain.
For Niko Kovac, the tactical headaches are piling up. The schedule is tightening across league and Europe, yet the very players signed to give Dortmund a new dimension are watching from the treatment room or the hospital ward.
Guirassy turns the game
On the pitch, the team somehow managed to steady themselves.
When Karetsas left the field, the game was still goalless. The atmosphere, though, had changed. For a spell, the football felt secondary, almost incidental, as both sides tried to regain focus after the interruption.
Then the match finally snapped into life.
Dortmund and Villarreal traded blows in a frantic second half, the contest opening up into the kind of end-to-end European tie that tests both nerve and fitness. In the chaos, one man imposed himself.
On his 100th appearance for the club, Serhou Guirassy delivered. Twice.
His late brace dragged Dortmund over the line in a 3-2 thriller, his goals not only sealing a vital away win but also pushing him past Robert Lewandowski in the club’s scoring charts. On any other night, that milestone would have dominated the headlines.
Instead, it felt like a powerful subplot to a far more human story.
Points gained, focus elsewhere
The victory keeps Dortmund’s Champions League ambitions firmly on course. A 3-2 away win in Spain, a landmark night for Guirassy, and a statement that this side can still find solutions in adversity.
Yet as the players left the pitch and the noise inside the stadium faded, thoughts drifted back to that moment in the first half, to the teenager who had signalled for help and sat down on the grass.
For Dortmund, the table matters. The goals matter. But right now, everything hangs on one question: how quickly can Konstantinos Karetsas return not just to the squad, but to full health?
