Chicago Bears middle linebacker Brian Urlacher underwent arthroscopic surgery on his left knee Tuesday, reports the Chicago Tribune's Brad Biggs.
Urlacher sprained the MCL and PCL in that knee in Chicago's final regular season game last January. He played during the first week of Chicago's training camp but was then shut down because the knee swelled up, Biggs reports. He last practiced on July 31.
Throughout training camp, the 34-year-old Urlacher has said he would be ready for Chicago's first game, Sept. 9 against the Colts. It's uncertain whether that will still be the case. Urlacher, who made his eighth Pro Bowl last season, has started the Bears' last 32 regular season games. He had 86 tackles and intercepted three passes last year.