CLEVELAND (AP) - Browns linebacker D'Qwell Jackson is out for the season with a shoulder injury.
Cleveland placed its leading tackler on injured reserve Tuesday, two days after he injured his shoulder in a 27-14 loss at Pittsburgh.
"It's disappointing any time you lose a player for the season, and this is especially true with someone like D'Qwell, who has proven to be an outstanding leader for us both on and off the field," Browns coach Eric Mangini said in a statement.
Jackson got hurt in the second quarter on Sunday. He faces possible surgery.
He led the NFL with 188 tackles last season. A second-round pick in 2006, Jackson is eligible for free agency after this season. He had been trying to get a new contract from the Browns, who may now have to play rookie David Veikune and Kaluka Maiava at inside linebacker in their 3-4 scheme.