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DAVIE (CBSMiami/AP) — The Miami Dolphins got some good news Thursday, which was immediately followed by some bad news.

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Defensive tackle Earl Mitchell, sidelined since Week 1 because of a calf injury, has been activated from injured reserve.

Mitchell, who has 33 career starts, is expected to play Sunday at San Diego.

On the offensive side of the ball, receivers Jarvis Landry (shoulder) and Kenny Stills (calf) joined the injury report Thursday.

They both missed practice and their status is day to day.

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The injuries could mean increased roles against the Chargers for rookies Jakeem Grant and Leonte Carroo.

Fortunately, the Dolphins have been winning because of a stellar running game.

Head coach Adam Gase believes that will continue Sunday when Jay Ajayi runs all over the Chargers’ fifth-ranked NFL rushing defense.

“Jay is so effective, he’s a guy that runs very angry,” Gase said. “When you do that for four quarters, eventually the other team’s going to break because he’s a big back that runs hard and he runs through contact.”

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