Fred Jackson injured against Ravens

ORCHARD PARK, N.Y. -- Buffalo Bills running back Fred Jackson left in the third quarter of Sunday's game against the Baltimore Ravens with an apparent leg injury.

Jackson limped off the field after a 4-yard run and later departed for the locker room.

Before his injury, Jackson had 11 carries for 68 yards. He was injured shortly after C.J. Spiller, who left earlier with an ankle injury, returned to the game.