NFL TV Spot, 'Rules'

Dr. Jeff Crandall is an injury prevention expert for the NFL whose research has changed the rules of the game. He's also responsible for removing the blindside block and the wedge block to protect the health of players. With new innovation in equipment and improvement to the rules, Crandall and the NFL's health and safety Initiatives have reduced kickoff injuries by 26 percent. This means that players spend less time off the field and more time doing what they do best.