"Peppers does a good job of mixing it up," Monroe said. "When you play against a guy like that with the ability to press upfield, you have to be ready for all of it."
Ngata, Brown sidelined
Ngata declined an interview request after the game, but wasn't limping noticeably.
Ngata didn't practice all week because of a left knee injury suffered against the Cincinnati Bengals and was listed as questionable. He attempted to practice Friday, but was unable to go.
"I'm not sure how to answer that," Ravens coach John Harbaugh said when asked how close Ngata was to playing.
The Ravens started Terrence Cody at nose tackle with Ngata sidelined. Cody had one tackle.
"I think I did a good job," Cody said. "I made some plays out there and disrupted some things. All that matters is because we didn't come out with a win. We hope Haloti's back soon. If he's not, I got to carry the load."
Brown tested his knee during warmups, but didn't appear confident while making cuts. Brown tore his anterior cruciate ligament a year ago playing for Georgia, and the knee still occasionally bothers him.
Brown predicted he'll return Sunday against the New York Jets at M&T Bank Stadium.
"I'll be fine this week," he said. "It's just bruised. I'll be good."
Pro Bowl outside linebacker Elvis Dumervil had a quiet game with the exception of a penalty in the fourth quarter.
Dumervil was flagged for unnecessary roughness when he shoved Bears quarterback Luke McCown to the ground, a play ruled as a late hit.
"They're supposed to give you a step-and-a-half," Dumervil said. "I was definitely within the step. I thought that was a weak call."
One week after leading the Ravens with a season-high three sacks, Dumervil had no tackles.
"They made more plays than we made," Dumervil said. "Give them credit."