Two sources told the newspaper the Grade 2 hamstring strain could sideline Urlacher through the remainder of the regular season, though it's possible he could be back by the Bears' Dec. 30 game against Detroit.
Urlacher was hurt on the second-to-last play of Chicago's overtime loss to Seattle Sunday as he chased Seahawks quarterback Russell Wilson. There was no contact on the play.
Nick Roach is likely to start in Urlacher's place at middle linebacker Sunday against Minnesota. The Bears also have Dom DeCicco available.