Borussia Dortmund's Croatian coach Niko Kovac reacts 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)

Borussia Dortmund's German forward #14 Maximilian Beier controls the ball 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)

Borussia Dortmund's German forward #14 Maximilian Beier controls the ball 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)

Manchester City's Italian coach Enzo Maresca reacts during the UEFA Champions League first round day 1 football match between FC Porto and Manchester City at Dragao stadium in Porto on September 8, 2026. (Photo by PATRICIA DE MELO MOREIRA / AFP via Getty Images)

Manchester City's Italian coach Enzo Maresca reacts during the UEFA Champions League first round day 1 football match between FC Porto and Manchester City at Dragao stadium in Porto on September 8, 2026. (Photo by PATRICIA DE MELO MOREIRA / AFP via Getty Images)

Borussia Dortmund's German forward #14 Maximilian Beier celebrates after Villarreal scored an own goal 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)

Real Betis' Spanish defender #05 Marc Bartra (CL) celebrates with teammates after scoring Real Betis' second goal during the UEFA Champions League, league phase day 1, football match between Lille (FRA) and Real Betis (ESP) at the Stade Pierre Mauroy, in Villeneuve d'Ascq, on September 8, 2026. (Photo by Sameer AL-DOUMY / AFP via Getty Images)

Borussia Dortmund's German forward #14 Maximilian Beier celebrates after Villarreal scored an own goal 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)