Harrison was estimated to be a limited participant Wednesday due to a knee injury, but the team did not hold and official practice, Marc Raimondi of ESPN.com reports.
Harrison recorded a sack and played his usual allotment of defensive snaps this past Sunday against San Francisco, but he appears to have picked up a knee injury in the contest. The issue may not be serious given that he was able to practice in a limited capacity to begin Week 8 prep. Still, Harrison could enter the weekend with an injury status if he isn't able to practice in full by the end of the week.