The Buffalo Bills will be without running back Fred Jackson for Thursday Night Football against the Miami Dolphins, the team announced on Monday. Jackson left Sunday's game against the New England Patriots with a head injury, and officially was diagnosed with a concussion on Monday.
On head coach Chan Gailey's radio show, he noted that Jackson was not feeling well on the plane back to Buffalo. For the season, Jackson has 298 yards and three touchdowns, with 75 carries. He has split carries with C.J. Spiller this year, and has been eclipsed by him as the primary running back, even without injuries.
Spiller has 87 carries for 632 yards and four touchdowns. He's rushing at 7.3 yards per carry, while Jackson is averaging 4 yards. Still, Jackson does a lot of things differently and this hurts the Bills in advance of Thursday's game.
Given how strict the league has been with concussions, it's no surprise that Jackson isn't going to make the quick turnaround to play.