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

Joe Schad is a journalist covering the Miami Dolphins and the NFL at The Palm Beach Post. You can reach him at ...

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

The Dolphins are signing free agent running back Alexander Mattison, Jordan Schultz of Fox Sports reports. Miami lost Raheem ...

Joining Miami ...

Dolphins add running back Alexander Mattison. He has started 26 career games, including 7 for the Raiders last season.

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

The Miami Dolphins are making an addition to their running back room. The Dolphins agreed to a one-year deal with former Minnesota Vikings and Las Vegas Raider ...

Mattison makes his way to Miami following six seasons in Minnesota and Las Vegas. The Bronco great has tallied 2,790 rushing yards and 22 total scores in the NFL.

Mattison is a 5-foot-11, 220-pound rusher who immediately becomes the heaviest tailback on the Dolphins roster as Miami ...

The Dolphins agreed to sign veteran running back Alexander Mattison on Thursday, according to Fox's Jordan Schultz.