Konstantinos Karetsas and Borussia Dortmund
8 September 2026
Borussia Dortmund’s Konstantinos Karetsas was taken to hospital after experiencing circulatory problems during the club’s 3-2 Champions League victory over Villarreal. Dortmund said he was doing well under the circumstances while travelling for further medical tests.
The supplied report does not provide a diagnosis or recovery timetable, only that Karetsas required hospital assessment after becoming unwell during the match. His condition therefore remains under evaluation, with further tests expected to determine the cause and any next steps.