D.J. Swearinger

Daily Madden: The Confusion Over NFL Tackling RulesMiami Dolphins tight end Dustin Keller suffered a serious injury when he was hit in the knees following a reception in a game against the Houston Texans. The player who hit him, Texan safety D.J. Swearinger, suggested rule changes outlawing hits to the head have forced defenders to target the knees when tackling.