Ravens rookie defensive tackle Timmy Jernigan is officially listed as doubtful on the injury report.
The second-round draft pick could just as easily have been ruled out, though. Jernigan has a meniscus issue in his knee and could miss a game or two after getting injured against the Pittsburgh Steelers, according to sources.
With Jernigan sidelined, the Ravens are expected to have former Cincinnati Bengals and Oakland Raiders defensive tackle Christo Bilukidi active for the first time since being claimed off waivers last week.
"I thought our pro department and our scouts did a great job," Ravens coach John Harbaugh said of Bilukidi. "We were prepared for that. We scouted the whole league and we know the guys we're interested in and they did a nice job with that.
"We'll just see how he does. In practice so far, he's done a great job. Hard worker, great attitude, seems like he has played some football. He's a young guy, and he gives us some depth."
Meanwhile, starting running back Bernard Pierce is questionable with a thigh injury. He's expected to play Sunday against the Cleveland Browns after being upgraded to full participation Friday after being limited Thursday.
Quarterback Joe Flacco (illness), cornerbacks Lardarius Webb (lower back) and Asa Jackson (concussion) and left tackle Eugene Monroe (knee) are all listed as probable.
For the Browns, running back Ben Tate is out with a sprained knee.
Tight end Jordan Cameron (shoulder) and outside linebacker Barkevious Mingo (shoulder) are questionable.
The following players are probable for the Browns: wide receiver Travis Benjamin (knee), defensive lineman Desmond Bryant (wrist), defensive lineman John Hughes (hamstring), punter Spencer Lanning (shoulder), offensive lineman Paul McQuistan (ankle) and cornerback Buster Skrine (thumb).