Jonas Gray released among Dolphins roster moves Monday

The Dolphins made a flurry of roster moves Monday, which included the release of running back Jonas Gray. To take Gray's spot on the roster, the Dolphins signed rookie running back/kick returner Raheem Mostert.

The Dolphins also released center Sam Brenner and running back LaMichael James, while signing center Jacques McClendon and promoting tight end Jake Stoneburner from the practice squad.