Right tackle Anthony Davis, who suffered a concussion late in Sunday's win over the Giants, missed practice this week and will not play Sunday against Washington. Jonathan Martin will make his sixth start this season in Davis’ place.
It also means both teams on Sunday could be without starting tackles who were drafted in the first round of the 2010 draft. Washington's left tackle, Trent Williams, suffered a sprained MCL on Sunday and is listed as questionable for the upcoming game. If he can't play, rookie Morgan Moses would start and presumably square off against 49ers linebacker Aldon Smith for most of the afternoon.
After starting every game over the first four years of his career, Davis has been riddled with injuries this year. Shoulder surgery kept him out all of the offseason. Then a hamstring strain cost him the first three games of the season. As soon as he came back, a defender crashed into the back of his leg, causing knee and ankle injuries that kept him out the next two games.
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