Barcelona faced a challenging start to their Champions League campaign, suffering a 2-1 defeat to AS Monaco after goalkeeper Marc-André ter Stegen's risky pass led to Eric García's red card just 11 minutes into the match. Ter Stegen expressed regret over the miscommunication that resulted in García's expulsion, acknowledging the difficulties of playing nearly the entire game with ten men. Despite falling behind early, Barcelona managed to equalize through young talent Lamine Yamal but ultimately conceded a second goal in the second half, disappointing coach Hansi Flick in his Champions League debut. Ter Stegen noted the team's efforts to secure at least a point, emphasizing that they would aim to rebound in their next home match. The defeat marked Barcelona's first loss of the season, as they prepare for upcoming fixtures in both La Liga and the Champions League.