Barcelona's German coach Hans-Dieter Flick looks on during the UEFA Champions League first round day 1 football match between FC Barcelona and Feyenoord at Camp Nou stadium in Barcelona on September 9, 2026. (Photo by Josep LAGO / AFP via Getty Images)

Barcelona's German coach Hans-Dieter Flick looks on during the UEFA Champions League first round day 1 football match between FC Barcelona and Feyenoord at Camp Nou stadium in Barcelona on September 9, 2026. (Photo by Josep LAGO / AFP via Getty Images)

Barcelona players pose before the UEFA Champions League first round day 1 football match between FC Barcelona and Feyenoord at Camp Nou stadium in Barcelona on September 9, 2026. (Photo by Josep LAGO / AFP via Getty Images)

Feyenoord's Dutch midfielder #10 Luciano Valente (L) vies for the ball with Barcelona's Spanish midfielder #16 Rodrigo during the UEFA Champions League first round day 1 football match between FC Barcelona and Feyenoord at Camp Nou stadium in Barcelona on September 9, 2026. (Photo by Lluis GENE / AFP via Getty Images)

Barcelona's Spanish defender #05 Pau Cubarsi (L) vies for the ball with Feyenoord's Portuguese forward #11 Goncalo Borges during the UEFA Champions League first round day 1 football match between FC Barcelona and Feyenoord at Camp Nou stadium in Barcelona on September 9, 2026. (Photo by Josep LAGO / AFP via Getty Images)

Players observe a minute of silence in remembrance of the victims of the recent devastating floods in Nepal, before the start of the UEFA Champions League first round day 1 football match between FC Barcelona and Feyenoord at Camp Nou stadium in Barcelona on September 9, 2026. (Photo by Josep LAGO / AFP via Getty Images)

AS Roma's players take part in a training session on the eve of the UEFA Champions League first round day 1 football match between Fenerbahce SK and AS Roma, at the Fenerbahce Chobani stadium in Istanbul on September 9, 2026. (Photo by Ozan KOSE / AFP via Getty Images)

Barcelona's Brazilian forward #11 Raphinha (R) celebrates scoring his team's first goal during the UEFA Champions League first round day 1 football match between FC Barcelona and Feyenoord at Camp Nou stadium in Barcelona on September 9, 2026. (Photo by Josep LAGO / AFP via Getty Images)