JACKSONVILLE – Paul Posluszny's season is over.
Paul Posluszny, the Jaguars' starting middle linebacker and a defensive leader, will be placed on injured reserve with a torn pectoral muscle, the team announced on Monday.
Posluszny, the Jaguars' leading tackler this season with 69, sustained the injury in the third quarter of the team's 24-6 victory over the Cleveland Browns at EverBank Field Sunday. He finished the series in which he sustained the injury, and said in the locker room afterward he believed he would play Sunday against the Miami Dolphins.
But the team on Monday announced that he will go on injured reserve, which ends his fourth season with the Jaguars after seven games.
Posluszny, who had a sack and a fumble recovery Sunday, is third in the NFL in tackles, and also has two sacks this season. He led the team in tackles each season from 2011-2013 and was a Pro Bowl selection last season.
The announcement regarding Posluszny came the same day the team announced that defensive end Andre Branch is expected to miss about six weeks with a groin injury. Branch sustained the injury in the fourth quarter of the victory over the Browns.
Branch has three sacks this season.
Also on Monday, the Jaguars announced that cornerback Aaron Colvin likely will practice Wednesday. The rookie fourth-round selection from Oklahoma University spent the first seven games on the Physically Unable to Perform list.
The Jaguars will have 21 days from the first time Colvin practices to decide whether to move him to the active roster or place him on injured reserve.