Konstantinos Karetsas' Health Scare Overshadows Dortmund's Champions League Victory
Dortmund’s Champions League win in Spain was supposed to be a coming‑of‑age night for Konstantinos Karetsas. Instead, it turned into a deeply worrying one.
Barely into his debut against Villarreal, the 18-year-old midfielder played a simple pass, then suddenly looked in trouble. He raised his arm towards the referee, clearly signalling something was wrong, before lowering himself onto the turf. The stadium noise dipped to a hush as teammates and opponents waved urgently for medical staff.
Karetsas remained conscious but the concern was immediate and real. Dortmund’s players formed a loose circle, some with hands on hips, others staring at the ground, as the teenager received treatment on the pitch. Moments later he was helped off and taken straight down the tunnel, the occasion’s glamour stripped away in an instant.
The club moved quickly to address the situation. In a statement released not long after the incident, Dortmund confirmed the problem was related to the player’s circulatory system. “Konstantinos Karetsas had to leave the field due to circulatory problems,” the club said. “Kosta is doing well under the circumstances and is on his way to the hospital for further tests.”
Inside the dressing room, the mood matched the tension outside. Speaking after the final whistle, goalkeeper Gregor Kobel gave voice to the squad’s anxiety, while clinging to optimism. “I hope and I think that everything is OK and I hope that he’s back and fit with us soon,” he told broadcaster Amazon Prime.
For Dortmund, the scare comes at the worst possible time in a season that was meant to be defined by their bold investment in youth. Karetsas arrived at Signal Iduna Park in the summer as one of the headline signings in a sweeping recruitment drive. The former Belgium youth international, now representing Greece, cost around €30 million to prise from Genk, a statement fee for a teenager expected to anchor the club’s future midfield.
He was not the only major bet. Fellow Greece international Giannis Konstantelias joined in the same window from PAOK for €26m, the pair billed as central figures in a new-look Dortmund built to compete deep into Europe.
That plan has unravelled at alarming speed. Konstantelias’ season was effectively wiped out last month when he suffered a serious ACL injury on his Bundesliga debut. Now Karetsas, the other pillar of that project, faces an anxious wait for test results after his collapse in Spain.
For Niko Kovac, it is a nightmare scenario. The Dortmund coach has seen two of his most expensive summer signings sidelined just as the calendar begins to congest. With domestic fixtures stacking up and Champions League nights demanding tactical precision, he is being forced into rapid reshuffles rather than refining the system he imagined with Karetsas and Konstantelias at its heart.
Match Response
On the pitch in Villarreal, though, his team found a way to respond.
When Karetsas left the field, the game was still goalless, tense and bitty. The shock of the stoppage hung over the contest, both sets of players needing time to reset. Then the match finally cracked open. Tackles flew in, spaces appeared, and chances started to come at both ends.
In the chaos, one man imposed order. On his 100th appearance for Dortmund, Serhou Guirassy delivered the kind of performance that defines milestones. With the score finely poised late on, he struck twice, a ruthless brace that dragged his side over the line and secured a 3-2 victory. Those goals did more than settle a wild European tie; they also pushed him beyond Robert Lewandowski in the club’s scoring charts, a landmark that underlined his growing stature in black and yellow.
The win keeps Dortmund’s Champions League campaign on course, three points banked on a fraught night in Spain. Yet as the players walked off, the celebrations felt muted. The questions were not about tactics or goals, but about a teenager in a hospital undergoing tests.
For all the numbers and milestones, one issue now towers over the rest at Dortmund: when will Konstantinos Karetsas be back, and in what shape will he return to a season that was meant to launch his career to another level?
