Having obtained his parents’ permission, Joe Nuxhall signed a contract with the Cincinnati Reds on February 18, 1944 at the age of fifteen years old. Nuxhall would become the youngest player ever to appear in a major league game, tossing 2/3 of an inning for Cincinnati that June, with forty-nine days to go until his sixteenth birthday.
Joe Nuxhall (MLB.com)
