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

Dolphins Must Pursue Devin Singletary Trade After Alexander Mattison Injury originally appeared on Athlon Sports. An already concerning Miami Dolphins running back room suffered a significant blow when seven-year veteran Alexander Mattison underwent season-ending neck surgery on Sunday night.

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