イワン・プトスキー
In November 1976, Stasiak began regularly wrestling for the WWWF once more. In his first match back, he challenged WWWF Heavyweight Champion Bruno Sammartino in Madison Square Garden, winning by count-out. The following month, he lost to Sammartino in a "Sicilian stretcher" match. In early-1977, Stasiak repeatedly challenged Billy White Wolf and Chief Jay Strongbow for the WWWF Tag Team Championship, with his partners including Baron Mikel Scicluna, Baron von Raschke, and Tor Kamata. Throughout spring 1977, Stasiak repeatedly unsuccessfully challenged Sammartino. During the remainder of 1977 and early 1978, Stasiak's regular opponents included Gorilla Monsoon, Ivan Putski, Larry Zbyszko, and Peter Maivia. In April 1978, Stasiak unsuccessfully challenged Bob Backlund, who had recently won the WWWF Heavyweight Championship. Over the following months, he teamed with a series of partners including Butcher Vachon, George Steele, and Johnny Rodz to challenge WWWF Tag Team Champions Dino Bravo and Dominic DeNucci, but was unable to defeat them. Beginning in December 1978, he again teamed with a series of partners to challenge new WWWF Tag Team Champions Larry Zbyszko and Tony Garea. Stasiak left the WWWF in March 1979.