Following a collegiate career playing football for the Nebraska Cornhuskers, Doyle was selected by the New York Giants in the eighth round of the 1938 NFL draft.

[1] Doyle would play in the NFL from 1938 through 1945 for the various iterations of Art Rooney's Pittsburgh Steelers franchise, including the 1943 joint operation with the Philadelphia Eagles, nicknamed the "Steagles", and the 1944 combination with the Chicago Cardinals, remembered to football historians as Card-Pitt.

[3] Doyle played college football for the Cornhuskers varsity team from 1935 until 1937 for head coach Dana X. Bible, winning Big Six Conference championships during this interval.

[3] His forte seems to have been on the defensive side of the ball, with one contemporary news account calling him "seldom flashy" but "dependable and tough to gain ground through.

Doyle would play in the NFL without interruption from 1938 through 1946, always taking the field for the various iterations of Rooney's franchise, which became the Pittsburgh Steelers in 1940, a joint operation with the Philadelphia Eagles, nicknamed the "Steagles" in 1943, and a new combination with the Chicago Cardinals, remembered to football historians as Card-Pitt, in 1944.