Cleveland Browns LB Karlos Dansby (toe), QB Johnny Manziel (concussion), WR Marlon Moore (concussion), OT Joe Thomas (knee), CB Tramon Williams (concussion) and RB Glenn Winston (concussion) did not participate in practice Thursday, Dec. 31. RB Raheem Mostert (ankle) and CB K’Waun Williams (shoulder) were limited during practice, while DE Desmond Bryant (thumb) and DE Randy Starks (non-injury) fully participated in practice.