MIAMI GARDENS — Miami Dolphins running back Raheem Mostert’s status is in doubt for Sunday’s game against the Seattle Seahawks, but left tackle Terron Armstead appears primed to play. Dolphins coach Mike McDaniel said it’s unlikely Mostert can play through his chest injury, but he’s still keeping the possibility open. “I’d be pessimistic that he’d play, but I can’t rule it out,” McDaniel said. Armstead injured his right shoulder the last time the Dolphins played, Sept.