DL Marcus Harrison at work for the Chicago Bears.
FOXBOROUGH, Mass. -- The Patriots announced the signing of free-agent defensive tackle Marcus Harrison to the 53-man roster on Friday. The signing adds depth along the interior of the line with starter Kyle Love questionable with a back injury. Veteran Albert Haynesworth is also still dealing with a back injury.
A signing this late in the week, when most of the game-plan is already installed, reflects some doubt about some of the interior linemen battling injuries. Love was added to the injury report Thursday.
To make room for Harrison, the Patriots released cornerback Phillip Adams, who had been re-signed Thursday.
Harrison (6-3, 316) entered the NFL as a third-round draft choice of the Bears in 2008. The former Arkansas product played in 37 games for the Bears, where he played alongside Patriots defensive end Mark Anderson, and totaled 55 tackles and 3 sacks. He will wear jersey No. 90.
The Patriots have Vince Wilfork, Love, Haynesworth and Gerard Warren as their top interior linemen in the four-man fronts they have been running. In sub packages, Shaun Ellis can reduce inside in a pass-rush type role.