Smythe (quad/knee) was listed as a limited participant on Tuesday's practice estimate, Daniel Oyefusi of the Miami Herald reports.
Smythe appears to have picked up a combination of both quad and knee issues during Sunday's loss to the Chargers, putting his Week 15 availability in question. The 27-year-old will have two more chances to ramp back up to full speed in practice in order to avoid carrying an injury designation into Saturday's contest against Buffalo.