Bills running back Fred Jackson is expected to miss "a few weeks" with a hamstring injury. The injury occurred on Friday and will force him to miss the intra-squad scrimmage this weekend. With Anthony Dixon also sidelined with a calf injury, Bryce Brown and Karlos Williams are likely to see more work. F-Jax is expected to be the RB2 in Buffalo behind LeSean McCoy .
Fantasy Analysis:
Jackson is the oldest active RB in the NFL and has been for a few years. So missing practice time probably isn't going to hurt him too much.