Achane (calf) doesn't have an injury designation for Sunday's game against the Colts, Travis Wingfield of the Dolphins' official site reports.
Achane participated without limitations in practice Friday and avoided a Week 1 injury designation after limited sessions Wednesday and Thursday. He'll be backed up by rookie sixth-round pick Ollie Gordon against the Colts, as fellow running back Jaylen Wright (knee) was ruled out Friday. Gordon could be better suited for short-yardage work, but the speedy Achane should get the majority of touches in Miami's backfield.