In 1976 , Hansen made his debut for the World Wide Wrestling Federation ( WWWF ) .
Only two months after Hansen began competing for the company , Hansen began feuding with the WWWF Heavyweight Champion Bruno Sammartino over the title .
In 1976 , Hansen made his debut for the World Wide Wrestling Federation ( WWWF ) and only two months after he began competing for the company , he began feuding with the WWF Heavyweight Champion Bruno Sammartino over the title .