MIAMI GARDENS — If you think Miami Dolphins quarterback Tua Tagovailoa is in danger of being thrown around the field as though he were a 227-pound sack of flour, consider the plight of rookie running back De’Von Achane. He was body slammed to the ground once in last Saturday’s 28-3 victory over Houston and thrown to the ground and landed on violently another time — the last incident causing him to leave the game and be declared “week to week” by coach Mike McDaniel.