Lake Forest, IL ( - The Chicago Bears placed left guard Matt Slauson on injured reserve Saturday due to a torn pectoral muscle.

Slauson sustained the injury during Chicago's 51-23 loss at New England on Oct. 26. The six-year veteran missed three games earlier in the campaign after spraining his ankle in the season opener.

The 28-year-old had started all 16 games in each of the previous four seasons, the first three of which were spent with the New York Jets.

Either Brian de la Puente or Michael Ola will replace Slauson in the starting lineup for Sunday's game at Green Bay.

Tight end Blake Annen was promoted from the practice squad to fill the available roster spot.