Trent Williams, center, is expected to miss two or three more games with his thumb injury. (John McDonnell/The Washington Post)

Offensive tackles Trent Williams (thumb surgery) and Morgan Moses (knee) were among the injured Washington Redskins who did not participate in practice on Wednesday, along with running back Chris Thompson (ribs), cornerback Quinton Dunbar (shin) and wide receiver Jamison Crowder (ankle).

Williams is expected to miss two to three more weeks. Moses could be seen working in the team’s rehab area with a bulky brace on his right knee, and Crowder was also in the rehab area, running routes.

Coach Jay Gruden said Dunbar is still dealing with a nerve issue in his lower leg and can’t run full speed. Rookies Danny Johnson or Greg Stroman would fill in at Dunbar’s starting outside cornerback spot if he can’t go.

Running back Adrian Peterson (shoulder) and tight end Jordan Reed (back) were limited.

The team placed guards Brandon Scherff (torn pectoral muscle) and Shawn Lauvao (torn ACL) and wide receiver Paul Richardson (shoulder) on injured reserve on Monday, as all three will need to have surgery.

Gruden said Wednesday he doesn’t have a good feel for who will start along the offensive line in Sunday’s game against the Tampa Bay Buccaneers, and the answer could depend on Moses’s status. It is not yet clear if Crowder and Thompson will play Sunday, although it appears likely that both could miss at least another week.

The Redskins activated defensive lineman Stacy McGee from the physically unable to perform list Tuesday, and he’s now on the 53-man roster. He started 10 games and posted 44 tackles last season, his first in Washington. The sixth-year veteran began the season on the PUP list after having core muscle surgery during the offseason.

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