The Miami Dolphins added a power-running veteran to their running back room on Thursday, agreeing to a deal with Alexander ...

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

The Miami Dolphins are bolstering their backfield in free agency. The Dolphins agreed to sign veteran running back Alexander ...

Alexander Mattison has a deal in place to join the Dolphins, Jordan Schultz of Fox Sports reports. After a single season with ...

If Mattison - 5-foot-11, 220 pounds - can convert short-yardage plays at a rate similar to Ajayi, another former Boise State running back, Miami would sign up for it today. Mattison has succeeded in ...

The Miami Dolphins announced today that they have signed running back Alexander Mattison as an unrestricted free agent.

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

The Miami Dolphins have agreed to terms with former Las Vegas Raiders running back Alexander Mattison. Mattison is a powerful runner who will provide a change of pace from Miami's speedy backs.