Williams was evaluated for a concussion during Saturday's Week 17 loss to the Rams, but he was cleared and returned to the game, Theo Mackie of The Arizona Republic reports.

James Conner Won't Play In Regular-Season Finale

Trey Benson (ankle) placed on IR

Hassan Hall signs with Cardinals practice squad

The 49ers prepare for Week 18 matchup against Cardinals with three practices and media sessions

Arizona signed Hall to its practice squad Tuesday, Darren Urban of the team's official site reports.

Hassan Hall - Lands on Cardinals' practice squad

Arizona placed Benson (ankle) on injured reserve Tuesday, Darren Urban of the Cardinals' official site reports.

Trey Benson - Won't play in Week 18