The Dolphins immediately got to work on finding new running backs this preseason amid Alexander Mattison’s season-ending injury.

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 surgery took place in Chicago on Sunday after Mattison injured his neck during the Dolphins' preseason game vs. the Bears. He was taken to a local hospital via ambulance from the game to undergo surgery, ESPN's Adam Schefter added. While he’s expected to make a full recovery, he will not be available for the Dolphins this year.

The Miami Dolphins are experiencing a soft reset this year, but they have to ask themselves whether wide receiver Tyreek Hill has reached the point where he's no longer valuable enough to retain.

From the moment Dolphins receiver Tyreek Hill capped the 2024 season by saying it's time for him to leave Miami, a strange vibe has existed between the player and the team.