Our ten-year-old son has a variety of hobbies including cello, chess and swimming. But his favorite subject is the NFL. He's learned professional football is a universal language among the males in his life. Whether discussing Red Grange or Tom Brady, his eyes light up. "What if Eli Manning had stayed with the Chargers? What if the American Football League had never merged with the National Football League? These are the sorts of questions he ponders over breakfast. For all of his interest in the sport, his on field experience is limited to touch football with friends and flag football at the Y. Chances are if I tell him he can play tackle football next year, he will suit up in a minute.