PITTSBURGH _ Ravens safety Tony Jefferson will miss the rest of the season with a knee injury, coach John Harbaugh said after the Ravens' 26-23 overtime victory Sunday over the Pittsburgh Steelers.
Jefferson, who has been handling the Ravens' defensive communication duties for the past two games, was in coverage in the fourth quarter when he fell to the ground, grabbing his knee. He walked off the field, with assistance from team doctors, before being carted to the locker room. Harbaugh said the injury is at least an ACL tear for the 27-year-old veteran.
Third-year player Chuck Clark replaced Jefferson at safety.
Inside linebacker Patrick Onwuasor handled communication duties Sunday after Jefferson went out. Onwuasor relayed calls to the defense to begin the season before Jefferson took over.
Also Sunday, tight end Mark Andrews walked off the field without assistance after an awkward fall while being tackled late in the fourth quarter. Andrews returned to the field after sitting out a few plays on the team's next offensive possession.
Rookie receiver Marquise Brown sat out the entire third quarter with an ankle injury before returning and catching a pass in the red zone.