Barcelona suffered a 2-0 Champions League defeat to Atlético Madrid as Hansi Flick raged over refereeing decisions in the quarterfinal first leg. Pau Cubarsi's red card left Barcelona with ten men, while Flick fumed over a missed penalty when Marc Pubill handled the ball in the area. The German coach questioned VAR's focus, calling it "not fair" after his team's Camp Nou collapse.

Julián Álvarez and Alexander Sørloth capitalized on Barcelona's numerical disadvantage, with Álvarez scoring his ninth Champions League goal this season. Atlético secured their first win at Camp Nou since 2006, leaving them in a commanding position for next Tuesday's second leg in Madrid. The Spanish champions dominated possession despite playing with a man less for much of the contest.

Marcus Rashford ended with seven shots but couldn't breach Juan Musso's seven saves as Barcelona's attacking efforts frustrated. Flick saw enough in his team's performance to believe the tie remains alive. "With one player less we give everything; today we were not lucky," the Barcelona coach stated, acknowledging the uphill battle while pledging to fight for progression.