A female assistant referee, Mathilde Demoncay, suffers a concussion during an incident while trying to stop a heated confrontation between players from French club Metz and Dutch side Fortuna Sittard. According to reports, the brawl occurs during a pre-season friendly match. Demoncay attempts to intervene to break up the altercation, but she is knocked to the ground in the process. As a result of the impact, she is diagnosed with a concussion. Both outlets describe the incident as happening while she is attempting to separate players rather than as a reaction to an aggressive act directed at officials. The reports focus on her injury and the circumstances leading to it, including the effort to restore order during the clash. There is no additional consensus provided in the coverage about the severity of her condition, the duration of the stoppage, or any disciplinary actions against players. The incident is reported as occurring in connection with the Metz vs Fortuna Sittard match.