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He is a one time American Wrestling Association World champion and also wrestled in the National Wrestling Alliance, the World Wrestling Association in Indianapolis and the World Wide Wrestling Federation.
In the 1980s, WWF professional wrestler Bob Backlund performed the Harvard step test to demonstrate his exceptional conditioning.
He is the father of the late "Mr. Perfect" Curt Hennig, the grandfather of Joe "Curtis Axel" Hennig, and is best known for his work in the American Wrestling Association, National Wrestling Alliance and World Wide Wrestling Federation.
Also in the 1970s, Green toured with the World Wide Wrestling Federation (later the World Wrestling Federation) and Leroy McGuirk's Mid-West territories.