Updated

Lake Forest, IL (SportsNetwork.com) - Chicago Bears coach Marc Trestman told reporters Friday that linebacker D.J. Williams has a pectoral muscle injury that could be season-ending.

Williams left Thursday's win over the New York Giants with the injury. Jon Bostic replaced him in the lineup.

The 31-year-old Williams has 27 tackles, two sacks and one forced fumble in six games (four starts) this season.