The Buffalo Bills' injury-ravaged defense can add illness to the list of afflictions.
Defensive end Mario Williams missed his second straight practice Thursday because of an illness, leaving his status for Sunday's game against Washington up in the air. Williams came in late Wednesday night to meet with defensive line coach Karl Dunbar and go over the game plan, and was at the team facility Thursday meeting with the training staff.
"I know he wants to play," Bills coach Rex Ryan said. "He felt a little better late last night."
Ryan said Williams could play even if he misses the entire practice week, provided he knows his responsibilities.
"Certainly, with his kind of abilities, you want him out there, period," the coach said.
Linebacker Nigel Bradham was limited for a second straight practice, but Ryan sounded pessimistic that he'll be able to return after missing the past two games because of an ankle injury.
"I was more confident earlier in the week than I am now," Ryan said of the possibility of having Bradham available.
In addition to Williams, tight end Charles Clay (back), right tackle Seantrel Henderson (illness) and safety Bacarri Rambo (knee) did not practice Sunday.
Rambo was limited in Wednesday's practice, but had a setback during the session.
"We're hoping that he progresses where he can play, but yeah, it was a setback," Ryan said of Rambo.
Safety Aaron Williams (neck), cornerback Ron Brooks (concussion/neck), fullback Jerome Felton (back), running back Karlos Williams (shoulder), linebacker Preston Brown (hamstring) and wide receiver Robert Woods (hip) joined Bradham as limited practice participants.
Brown, Woods and Felton are all expected to be ready to face the Redskins, while Karlos Williams is likely to be a game-time decision.
"That's going to be one of those iffy things," Ryan said. "He looks good. I think his legs are ready. How he feels with his shoulder, that's the main issue. I think we'll wait the next couple days before we make that determination."
Henderson's status remains murky. The Buffalo News reported Wednesday that he's dealing with Crohn's disease. Ryan confirmed Henderson was hospitalized Saturday before the Bills faced the Philadelphia Eagles.
"He's here today," Ryan said. "I'm not real sure, you know, what his status is. We thought he would play last week, and then the night before the game, he comes down with an illness, so we're really not sure."
Aaron Williams, meanwhile, remains on the short-term injured reserve list and will not be activated this week.
"He's practicing on the scout team, but we're not ready to put him out there," Ryan said. "He's really non-contact. He can practice, he can run, he looks really good that way, but our trainers aren't comfortable with him hitting."