Bryant was listed as a full participant in practice all three days this week but still got the questionable tag on Wednesday's injury report due to a back issue.
Jackson returned to action last Sunday night against the Green Bay Packers after missing a game with a shoulder injury. Jackson was limited in practice Monday and Tuesday but was a full participant on Wednesday.
Cowboys left tackle Tyron Smith (back, hip), defensive end Demarcus Lawrence (back), defensive tackle Terrell McClain (thigh) and tackle Chaz Green (back, foot) also were listed as questionable. Green was the only one among the group to miss Wednesday's practice. Safety Barry Church (forearm) and cornerback Morris Claiborne (groin) remained out for Dallas.
For the Redskins, defensive end Chris Baker (hamstring) and tackle Ty Nsekhe (ankle) joined Jackson as questionable. Long snapper Nick Sundberg will miss his second straight game due to a back injury.