Rashad Jennings (ankle) is officially out for Sunday's game against the Rams, ESPN's Dan Graziano reports. Williams is expected to start at running back.

With Rashad Jennings (ankle) officially out for Sunday's game against the Rams, per ESPN's Dan Graziano, Williams is expected to start at running back.

Analysis:

Jennings' ankle injury is leading to plenty of opportunities for Williams (42 carries over the last two weeks), but it won't be easy for him to be productive against a stout Rams defense that ranks 12th in the NFL against the run and hasn't given up a rushing touchdown in the last two weeks. Still, he should be a good bet for 15-plus carries, so he'll have value depending on your situation.