イワン・コロフ
Backlund's early challengers for the title included Spiros Arion, Mr. Fuji, Ivan Koloff, George "the Animal" Steele, and Ken Patera, and had his first high-profile title match in Japan, defending against Antonio Inoki. He also won a series of rematches against Graham, including an April 1978 steel cage match at Madison Square Garden.