CINCINNATI -- The Bengals have placed starting middle linebacker Preston Brown on injured reserve, the team announced on Tuesday.
The injury is a blow to an already depleted defense that had to play two backup linebackers last week against the Ravens.
Brown said he injured his knee in the third quarter of a game against the Saints on Nov. 11. He was in a knee brace the following week and did not practice, but said he couldn't discuss what specifically was wrong.
"Coach says I can't speak about injuries," Brown said on Wednesday.