Mostert (ankle/knee) was a limited participant in Thursday's practice, Travis Wingfield of the Dolphins' official site reports.
After missing Wednesday session, Mostert was back on the field Thursday, albeit as a partial participant. Fellow running back De'Von Achane (knee) joined Mostert as a limited participant, and Friday's injury report should provide added clarity with regard to both players' chances of suiting up Sunday against the Commanders. So far, the Dolphins haven't suggested that Mostert is in any danger of being sidelined this weekend.