Gabby Hartnett, American baseball player and manager (died 1972)

Charles Leo "Gabby" Hartnett, also nicknamed "Old Tomato Face", was an American professional baseball player and manager. He played almost his entire career in Major League Baseball as a catcher with the Chicago Cubs, from 1922 to 1940. He spent the final season of his career as a player-coach with the New York Giants in 1941. After his playing career, Hartnett continued his involvement in baseball as a coach and as a minor league manager.

December 20 is the 354th day of the year in the Gregorian calendar; 11 days remain until the end of the year.