FC Barcelona have been eliminated from the UEFA Champions League at the quarterfinal stage after losing 3-2 on aggregate to La Liga rivals Atlético Madrid, despite winning Tuesday's second leg 2-1 in Madrid. The defeat marks a second consecutive season without a Champions League title for Barcelona, who were knocked out by Inter Milan at the semifinal stage last year. Coach Hansi Flick pointed to the club's exceptionally young squad — with an average starting age below 25 and teenage winger Lamine Yamal among the standout performers — as cause for optimism heading into next season, while acknowledging defensive vulnerabilities, including red cards in both legs, that allowed Atlético to exploit Barcelona's high defensive line throughout the tie.