The Lions have a reputation as one of the dirtiest teams in the NFL. Defensive tackle Ndamukong Suh, who will be a handful for the Ravens' interior offensive linemen, is considered one of the filthiest. That's what happens when you stomp on a guy during a nationally televised game on Thanksgiving Day. But this season, the Lions have been pretty disciplined, at least by their standards. They have committed 89 penalties this season for 724 yards. Suh and the Lions will try to get under the Ravens' skin. Look for the Ravens, who have gotten flagged 90 times for 743 yards, to lose their composure at least once.