Borussia Dortmund's Greek midfielder #19 Konstantinos Karetsas is carried off the pitch on a stretcher after injury during the UEFA Champions League - League phase, Matchday 1 - football match between BVB Borussia Dortmund and Villarreal CF in Dortmund, western Germany, on September 8, 2026. (Photo by Sascha Schuermann / AFP via Getty Images)