Ravens defensive tackle Arthur Jones was a non-participant in Thursday's practice due to a concussion he sustained in Sunday's loss against New England.
Jones has to clear the NFL's concussion protocol in order to be able to play in the season-finale against Cincinnati.
Ray Rice and Elvis Dumervil, who are both nursing nagging injuries, were limited participants in practice.
Here's the full injury report:
DID NOT PARTICIPATE: CB Asa Jackson (thigh), DT Arthur Jones (concussion).
LIMITED PARTICIPATION: LB Elvis Dumervil (ankle), G Gino Gradkowski (knee), RB Ray Rice (thigh), WR Torrey Smith (thigh).
FULL PARTICIPATION: LB Albert McClellan (neck).
DID NOT PARTICIPATE: LB Vontaze Burfict (concussion), TE Tyler Eifert (neck), TE Jermaine Gresham (hamstring), CB Terence Newman (knee), DT Devon Still (back).
LIMITED PARTICIPATION: CB Dre Kirkpatrick (ankle), LB Vincent Rey (ankle), TE Alex Smith (concussion), OT Andre Smith (ankle).
FULL PARTICIPATION: LB James Harrison (concussion).