For full breakdown, highlights, and contests, visit - http://www.prosportstop10.com/top-10-hardest-hitters-in-nfl-history/The absolute most ruthless players to ever play the game. The players that would do anything in their power to punish the opposing player. The opposing players injuries would vary from bruised ribs, to a helmet flying concussion, and even a broken leg that would end their careers. These are the top 10 hardest hitters in NFL history.
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