Chester "Chet" Hajduk (July 21, 1918 – July 4, 2006) was an American professional baseball player who played in one game as a pinch hitter for the Chicago White Sox of Major League Baseball in 1941. Hajduk grounded out in his only at-bat, which came against Cleveland Indians pitcher Al Milnar.[1] Hajduk enlisted with the US Navy in early 1942.[2] Hajduk played with the Great Lakes Naval Station team, and was a member of the Armed Services team that played the American League All-Stars in an exhibition/fund raising game at Municipal Stadium in Cleveland on the 7th of July, 1942.[3] After the war Hajduk settled in Niles, Illinois, becoming a successful building contractor and raising a family.[2]