Knee, ankle injuries will prevent Trent Williams from playing Sunday against 49ers

SANTA CLARA, Calif. — Trent Williams is inactive and will not play for the Washington Redskins on Sunday because of injury, leaving rookie Morgan Moses to start at left tackle against San Francisco.

Williams sprained the MCL in his right knee and also sprained his right ankle in the first quarter of the Redskins’ loss to Tampa Bay on Nov. 16. Unable to practice at any point during the week, Williams was listed as questionable on the Redskins’ injury report.

Moses replaced Williams for all but seven snaps against Tampa Bay. Taken in the third round out of Virginia in the NFL Draft in May, it was the most extensive action Moses has seen on offense all season.

Left guard Shawn Lauvao, who sustained a concussion in the game against Tampa Bay, is active and will play. Also listed as questionable, he sufficiently completed the league’s concussion protocol and was able to return to practice in a limited fashion on Thursday and Friday.

The Redskins had previously ruled out nose tackle Chris Baker, who sprained his right sternoclavicular joint, and tight end Jordan Reed, who strained his right hamstring. Cornerback David Amerson is also inactive and will not play because of an unspecified team matter.

Wide receivers Leonard Hankerson and Aldrick Robinson and quarterback Kirk Cousins are healthy scratches and will not play. Hankerson made his first appearance last week after spending the first nine games on the physically-unable-to-perform list.

Inactive for San Francisco are cornerback Tramaine Brock, who did not practice all week with an unspecified hamstring injury, as well as wide receivers Bruce Ellington and Quinton Patton, tight end Vance McDonald and third quarterback Josh Johnson.

The 49ers had previously ruled out right tackle Anthony Davis, who is still experiencing concussion-related symptoms, and defensive tackle Glenn Dorsey, who has been having issues with his surgically repaired left biceps, on Friday.