Williams is listed as "questionable" to return to the game due to an ankle injury.
Also "questionable" to return is safety Jaquiski Tartt, who suffered a foot injury. He was inactive for the past two games due to a groin injury.
Update: Tartt was later ruled "out." Head coach Kyle Shanahan informed reporters after that game that the safety suffered a toe injury.
The Packers currently lead the home-team 49ers 21-3 at halftime. Quarterback Aaron Rodgers has already thrown three touchdown passes to three different targets against San Francisco's defense. He is 13-of-18 for 149 yards.
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