John Alexander "Slingshot" Knolla (March 19, 1919 – January 12, 1992) was a National Football League (NFL) player for the Chicago Cardinals.
In 1940, he led all NCAA major college players with 1,420 yards of total offense, outpacing Tom Harmon by 52 yards and was named a "Little All American".
[5] He later became a teacher, high school football coach and athletic director and then a successful businessman.
In 12 non-contiguous seasons at Kapaun Mount Carmel High School, Knolla's teams went 56–43–3, including a 9–0 season and a City League championship in 1963.
This biographical article relating to an American football running back born in the 1910s is a stub.