All three had been listed as questionable — Fletcher and Hall with ankle injuries and Williams with a thigh injury — but all three had said as recently as Friday that they hoped to play.
All three will start as usual. Fletcher will extend his league-leading consecutive games played streak to 237 games.
The Ravens will be without linebacker Terrell Suggs, who is out with a torn biceps tendon.
Inactives for the Redskins: for the first time this season, kick/punt returner Brandon Banks will not suit up. Banks has struggled mightily this season, and coaches’ patience seemed to be wearing thin. Niles Paul or Aldrick Robinson are likely to handle return duties.
Also inactive for the Redskins are quarterback Rex Grossman, receiver Dez Briscoe, offensive linemen Josh LeRibeus, Adam Gettis and Tom Compton and linebacker Roddrick Muckelroy.