49ers | Thursday practice report for 49ers

San Francisco 49ers DT Arik Armstead (foot, knee), OG Aaron Banks (hip), LB Oren Burks (knee), TE Ross Dwelley (ankle), LB Dre Greenlaw (ankle, hip), DT Javon Hargrave (hamstring), CB Charvarius Ward (groin) and RB Elijah Mitchell (knee) did not participate in practice Thursday, Dec. 14. OG Spencer Burford (knee) was limited during practice, while CB Darrell Luter Jr. (hamstring) fully participated in practice.