Christy Mathewson Warms Up

UNITED STATES - CIRCA 1911: Informal full-length portrait of baseball player C. Mathewson of the National League's New York Giants, following through after throwing a baseball, standing in profile in front of grandstands on the field at West Side Grounds, in the Near West Side community area of Chicago, Illinois, 1911. A sign prohibiting betting is partially visible on the grandstand wall. From the Chicago Daily News collection. (Photo by Chicago History Museum/Getty Images)