The Buffalo Bills will be without Fred Jackson for their Week 11 divisional tilt against the Miami Dolphins after the running back suffered a concussion Sunday.

On the season, Jackson has rushed for 298 yards on 75 carries with three touchdowns.

After only receiving 12.7 touches per game, C.J. Spiller will assume the role of starter and instantly becomes a top five fantasy RB, even against a Dolphins defense that allows only 94.2 yards per game. Before the Titans’ Chris Johnson ran for 126 yards Sunday, the Dolphins defense hadn’t allowed a 100-yard rusher in 22 straight games.

The debate all season around the Bills’ offense has been the decision to not give Spiller the ball far more often. He has run for 632 yards in 2012 for a league-high average of 7.3 yards per carry. Spiller was on the field for less than half of the Bills’ offensive snaps during their loss to the Patriots, but when he got the ball, he looked dominant. It’s unfortunate an injury has forced Spiller back into a starting role again – Jackson missed weeks 2 and 3 with a knee injury — but for Bills fans and fantasy owners, it’s something that’s been anticipated for quite some time.

When Spiller faced Miami in Week 15 last year as the lead back, he rushed for 91 yards and a touchdown, while adding 76 receiving yards and a score.