The legendary Harry Greb stepped into the ring more than 300 times from 1913 to 1926, defeated opponents who outweighed him by more than 30 pounds, held the middleweight and light heavyweight titles and beat every Hall of Fame boxer he ever fought. Dubbed "the Pittsburgh Windmill" because of his manic, freewheeling style in the ring, Greb also crossed racial lines, taking on all comers regardless of color. An injury in the ring led to Greb's gradually going blind in one eye and should have ended his career, but he kept his condition secret and fought on. Tragically, the indomitable fighter...