NFL free agency has begun, and we're keeping track of every major signing, trade and release of the 2025 offseason, with analysis from our NFL Nation reporters and grades from our experts. The new league year began March 12 at 4 p.

The Miami Dolphins added a power-running veteran to their running back room on Thursday, agreeing to a deal with Alexander Mattison, a person with knowledge of the agreement told The Associated Press.

The Dolphins and free agent RB Alexander Mattison agreed to terms. Here’s what to know and how he fits in Miami.

Free agent running back Alexander Mattison has agreed to a one-year contract with the Dolphins, a source confirmed to ESPN.

Raheem Mostert, a former Pro Bowl running back for the Miami Dolphins, has found a free agent home with the Las Vegas Raiders.

Raheem Mostert is reportedly heading to the Las Vegas Raiders two years after setting a Miami Dolphins franchise record for touchdowns in a single season. Mostert agreed to a one-year deal with the Raiders on Thursday following his release by the Dolphins,

Former Miami Dolphins running back Raheem Mostert found a new home in free agency after landing a one-year deal with the Las Vegas Raiders. After the Dolphins released him earlier this offseason, the 33-year-old veteran is reportedly heading to the Raiders on a one-year deal worth $2.