After college, Schwartz became a professional Wrestler, trained in the early '70s by wrestling's Walter "Killer" Kowalski. Schwartz's original ring-name was Giant David, but by the '80s he was known as Joshua Ben-Gurion—The Israeli Commando. As a professional Wrestler, he performed in Japan, South Africa, Australia, New Zealand, American Samoa, Western Samoa, Fiji, Tonga, Guam, Canada and 40 of the 50 United States. He was promoted by Verne Gagne, Vince McMahon, Antone "Ripper" Leone, and Bruno Sammartino.