When Real Madrid steps onto the pitch for El Clásico this Sunday, they'll be missing one of their most influential players—but not due to a typical injury. Midfielder Federico Valverde has been ruled out with a head injury, and the cause is as shocking as it is rare: a heated altercation with his own teammate, Aurelien Tchouameni.

The incident unfolded during a training session at Real Madrid's Valdebebas facility on Thursday. According to reports, tensions boiled over in the dressing room after practice, leading to a physical confrontation between the Uruguayan and Frenchman. The scuffle reportedly left Valverde bloodied and unconscious, requiring immediate medical attention.

Spanish outlet AS detailed that Valverde suffered a facial laceration and was rushed to a local hospital for examination, where he received stitches. French publication RMC added that during the altercation, Valverde fell and split his head open, causing him to lose consciousness. The club later confirmed that the 27-year-old was diagnosed with a traumatic brain injury, sidelining him for 10 to 14 days.

This means not only will Valverde miss Sunday's massive clash against Barcelona, but his availability for Real Madrid's final three matches of the season is also in doubt—pending clearance from concussion protocols. As the team's vice captain, his absence leaves a significant gap in midfield during a crucial stretch of the campaign.

For fans, this is a stunning twist in what was already shaping up to be a high-stakes El Clásico. The incident serves as a reminder that even the most disciplined squads can face unexpected internal challenges. As Real Madrid looks to regroup, all eyes will be on how they adapt without one of their key leaders on the pitch.