Buffalo Bills running back Fred Jackson hurt his right leg in Sunday's loss to the St. Louis Rams and his status for the rest of the season is uncertain.
Coach Chan Gailey said he's hasn't yet talked to trainers, but described the injury as not looking good following a 15-12 defeat to the Rams.
Jackson was unable to put much weight on his leg, while being helped off the field.
C.J. Spiller could potentially see a huge workload if Jackson misses any time. Buffalo plays Seattle and Miami in the next two weeks. Both teams have been pretty good against the run.