Fred Jackson left the field with an apparent injury during the Buffalo Bills' Week 4 matchup with the Baltimore Ravens.
ESPN's Mike Rodak reported the 32-year-old running back was holding his left leg.
Fred Jackson limping off for the Bills. Holding his left leg.— Mike Rodak (@mikerodak) September 29, 2013
However, he was able to return to the field.
Fred Jackson back into the game for the Bills— Mike Rodak (@mikerodak) September 29, 2013
He is active against the Cleveland Browns.