With Duke Riley also a free agent, Britt gives the Dolphins a veteran third inside linebacker behind starters Jordyn Brooks and Tyrel Dodson, who agreed to a new deal on Wednesday. He has played between 114 and 324 special teams snaps every season.

The Miami Dolphins are bringing back offensive lineman Liam Eichenberg, who started 15 games at guard last year.

Guard Liam Eichenberg is re-signing with the Dolphins on a one-year deal, extending his career with the team past his expired four year rookie contract. Eichenberg started 14 games at right guard last season and has 52 starts during four years with the Dolphins.

The Dolphins are re-signing offensive lineman Liam Eichenberg to a one-year deal, Adam Schefter of ESPN reports.

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.