San Francisco 49ers RB Trenton Cannon (concussion), LB Dre Greenlaw (groin), DT Maurice Hurst (calf) and CB Emmanuel Moseley (ankle) did not participate in practice Thursday, Dec. 9. DE Nick Bosa (non-injury), C Alex Mack (non-injury), OT Trent Williams (non-injury), LB Marcell Harris (concussion) and LB Fred Warner (hamstring) fully participated in practice.
49ers.com