These are tales of the invincibles in sport- many of whom came back ""bloody but unbowed"" to win victory out of seeming defeat. Here is Di Maggio despite his injured heel hard at it to carry the Yankees to victory; here, Helen Wills, walking out of a championship match because of an injured back- and returning years later to defeat Helen Jacobs at Wimbledon; here. Ben Hogan, after the doctors said he'd never walk again, winning the U.S. Open; here are many other fighters, in most fields of sport, professional and amateur, making their comebacks after broken bones, broken hearts and broken spirits seemed to have written finis. Mel Allen tells a good story and his radio and TV fans will welcome these inspiring stories of courage. Plus market for teen age readers.