New England Patriots rookie offensive tackle Will Campbell was carted off the field with a knee injury during Sunday's 26-20 victory over the Cincinnati Bengals . The No. 4 overall pick went down with the injury in the third quarter and he was officially ruled out in the fourth quarter.

Campbell's leg was landed on at the end of a 4-yard run. He went to the blue medical tent, then looked emotional as he was carted off, putting a towel over his head as he exited the field.

The rookie has played 695 offensive snaps, or 98.3%, this year before going down with the injury.

Patriots left guard Jared Wilson exited the game in the first quarter with an ankle injury. According to ESPN Research , Wilson and Campbell were only the second rookie duo to open a season as starters at left gu

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