The New England Patriots now have two offensive linemen on the Week 9 injury report with concussions.
Starting center David Andrews suffered a concussion from an illegal blindside block in the Patriots' Week 7 loss to the Chicago Bears, and that injury sidelined him in the team's Week 8 win over the New York Jets.
Andrews is joined on Thursday's injury report by right tackle Marcus Cannon, who did not practice because of a concussion. Cannon has started the last two games at right tackle.