During the derby against Espanyol, Barcelona defender Gerard Martín experienced pain in his right leg near the end of the first half and was substituted at half-time by Marc Casadó on coach Hansi Flick's instruction.

The 24-year-old center-back felt discomfort around his ankle and calf during a solitary play around the 36th minute. Club medical staff quickly provided assistance, allowing him to complete the first half despite noticeable limping. Nevertheless, Flick chose not to risk further injury, especially with an important Champions League game against Atlético Madrid looming.

In Martín's absence, Eric Garcia shifted to center-back while Casadó took Eric's place in midfield. This tactical rearrangement came as Pau Cubarsí, another regular center-back, was suspended for the upcoming fixture.

Flick's precautionary substitution alleviated the coaching staff's concerns and helped maintain balance ahead of crucial Champions League matches. The careful approach underscores Barcelona's commitment to minimizing injury risks and ensuring key players remain fit for pivotal moments in the season.

For fans, this signals the club's attentive management of player health and willingness to make quick decisions even in high-pressure games. Martín's injury requires monitoring, but the timely substitution offers hope for his availability in future important matches.