Matthew Stafford had just 23 passing yards in the first half, and 49ers quarterback Brock Purdy finished with a 45.4 passer rating.

Williams is the only player from an Alabama high school or college on the Rams’ roster and the only one eligible to play in Thursday night’s game. Former South Alabama cornerback Darrell Luter Jr. is on 49ers’ roster, but he’s been on injured reserve since Nov. 17 because of a pelvic injury.