Ronnie Lott has always been tough. As a kid, when he fell down, he felt something inside him start to rumble. That something was a voice called Grit. On the court or off the field, no matter where he went or what he played, Grit was there. When he tumbled, Grit said, "Get back up!" When he fumbled, Grit said, "Let's try again!" When Grit helps Ronnie become a professional football player, he'll have a shot at achieving his dreams. But just how...