DAVIE, Fla. (AP) Miami Dolphins running back Lamar Miller and tight end Jordan Cameron have returned to practice on a limited basis, but defensive tackle Earl Mitchell has been added to the injury report after hurting his back.

Mitchell sat out Thursday's practice. Left tackle Branden Albert (right hamstring) remained sidelined.

Miller (right ankle) and Cameron (groin) were upgraded after missing practice Wednesday. Defensive end Cameron Wake (hamstring) was also upgraded and participated in the full workout.

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Limited for the second day in a row were safety Reshad Jones (hamstring), tight end Dion Sims (concussion) and center Mike Pouncey (elbow).

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