Mostert (knee) announced Wednesday via his personal Twitter account that he's "close to 100 percent" healthy.
Mostert also wrote that his "rehab is going great." While the veteran running back hasn't been a participant in the Dolphins' offseason program, he appears close to a return to on-field work. If Mostert is available for the start of training camp in late July, it would be an encouraging sign for his health, but an exact timetable for him to participate fully with the Dolphins isn't known. In any case, once Mostert is fully recovered from the surgery he underwent to address chipped cartilage in his left knee, he'll join Chase Edmonds and Sony Michel in Miami's revamped running back room.