Ridley was injured on a third quarter run when he was upended by a defender. His knee bent awkwardly as he hit the turf. He was helped to the sideline, where he was having trouble putting weight on the leg.
The four-year veteran has 340 rushing yards and two touchdowns on 94 carries in six games this season for the Patriots (4-2). Ridley, 25, has 22 career rushing touchdowns and has missed only two games in his career, both last season.
- Chris Mascaro