To make matters worse, offensive lineman Spencer Burford, who was supposed to start at left tackle with Williams and his backup Jaylon Moore on IR for the season, is listed as ‘out’ on the injury report with a calf injury he sustained in the team’s Week 16 loss to the Miami Dolphins.

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The San Francisco 49ers are set to host the Detroit Lions at Levi's Stadium in Santa Clara, California, on Monday, December 30, at 5:15 p.m. PT. The