Barcelona, under new coach Hansi Flick, suffered a 3-0 defeat to AS Monaco in the Joan Gamper Trophy, marking the end of their 11-year winning streak in the annual pre-season match. The defeat saw goals from Lamine Camara, Breel Embolo, and Christian Mawissa, with Flick acknowledging the need for improvement ahead of their La Liga opener against Valencia. Despite a solid US tour, the team struggled with ball control and speed, allowing Monaco to capitalize on mistakes. Flick defended his players, emphasizing the importance of learning from the loss and vowing for a better performance in their upcoming match. The loss raised concerns about injuries to key players like Ilkay Gundogan and Robert Lewandowski. Barcelona's defeat has sparked criticism from fans, who are eager for a strong start to the league season.