Andre Waters
Philadelphia Eagles defensive back Andre Waters was one of the hardest-hitting defenders in the league. His ferociousness on the field was an asset to the Eagles and feared by his opponents. Waters had a tendency to aim for a player’s knees on purpose to hurt them. In 1988 he did just that to Jim Everett which led to a new NFL rule, sometimes referred to as the ‘Andre Waters Rule,’ that said a player couldn’t hit a QB below the waist while in the pocket. He also caused an outrage by driving his helmet into the knees of Minnesota QB Rich Gannon. NFL Broadcaster Dan Dierdorf believed Waters gave dirty hits a lot and nicknamed the defender, ‘Dirty Waters.’ (AP Photo/Wilfredo Lee)