Bears linebacker Brian Urlacher could miss at least the next three games with a right hamstring injury, a league source confirmed.
The Chicago Tribune reported that Urlacher has a "Grade 2" hamstring strain, citing two sources.
Urlacher suffered the injury on the second to last play of the 23-17 overtime loss Sunday to the Seattle Seahawks. He waved for assistance at the end of the play, which was a 12-yard completion from quarterback Russell Wilson to receiver Jonathan Baldwin. On the next play, receiver Sidney Rice scored the game-winner from 13 yards out.
Urlacher leads the Bears with 88 tackles, and he's tied with Lance Briggs for a team-high seven tackles for loss. Urlacher also has four quarterback pressures, one interception, seven passes defended, three forced fumbles and two fumble recoveries.
The Bears are expected to start Nick Roach at middle linebacker and slide veteran Geno Hayes to strongside linebacker.
For depth, the Bears re-signed Dom DeCicco today.
The Bears enter a crucial stretch in the regular season. Currently 8-4, the Bears head to Minneapolis to face the Minnesota Vikings on Sunday then return for a game at Soldier Field against the Green Bay Packers. Then, the Bears finish on the road in Arizona and Detroit.