Teammates Lou Gehrig, left, and Babe Ruth study the form of 17-year old Chattanooga Lookouts minor league pitcher Jackie Mitchell, one of the first women to play professional baseball, as the Yankees visited Chattanooga for an exhibition game, April 2, 1931. With a sharp breaking ball, Mitchell thrilled the local fans by striking out both Ruth and Gehrig, back-to-back, in the first inning. Judge Kenesaw Mountain Landis, the baseball commissioner, voided Mitchell's contract shortly after the exhibition, saying baseball was