Miami Dolphins running back Alexander Mattison (neck) was officially placed on injured reserve on Monday. Mattison injured his neck during a preseason game against the Chicago Bears on Sunday and later went for surgery.

The Miami Dolphins lost one of their running backs for the 2025 season as Alexander Mattison was placed on injured reserve after injuring his neck during Miami's preseason opener against the Chicago Bears on Sunday. Mattison had surgery in Chicago after being taken by ambulance to a local hospital, according to ESPN.

The Miami Dolphins placed Alexander Mattison on injured reserve Monday after the veteran running back suffered a season-ending neck injury in a preseason game against the Chicago Bears. Mattison left Sunday's game with a neck injury after being tackled on a 21-yard pass play and landing awkwardly on his head in the