The Dolphins brought back defensive tackle Ryan Baker, addressing a concern about depth in the middle of their line.
Baker was part of of the Dolphins final cuts, after spending parts of the last three seasons with the team.
But with Tony McDaniel still struggling with a leg injury, the Dolphins needed a body and Baker was still available.
The Dolphins had the roster spot for him after waiving rookie linebacker Sammy Brown, who was claimed off waivers last week.
They also signed defensive tackle Chas Alecxih to the practice squad, to replace wide receiver Chris Hogan.