Clutching his right arm in pain, Ravens Pro Bowl outside linebacker Terrell Suggs left the game and headed to the locker room for further examination.
Suggs was in visible discomfort after a play late in the fourth quarter.
He was attended to by team doctor Leigh Ann Curl and head trainer Mark Smith.
It appeared to be an arm injury, not a shoulder problem, but no announcement was immediately made about Suggs' status.
After the game, Suggs told The Baltimore Sun: "I'll be all right," but declined to get into specifics about his injury.
And Ravens coach John Harbaugh said: "No immediate word on Terrell Suggs."
Suggs is the reigning NFL Defensive Player of the Year.