on December 17. Inoki's reign is not recognized by WWE in its WWF/WWE title history. On August 9, 1980, Backlund teamed with Pedro Morales to capture the WWF Tag Team Championship from the Wild Samoans at Showdown at Shea. Backlund and Morales were forced to vacate the title due to a then-extant WWF rule stating that no one can hold two championships at the same time. Backlund had more tag team success when he (along with Antonio Inoki) won the "1980 MSG Tag Team League Tournament", last defeating Hulk Hogan and Stan Hansen on December 10 in Osaka, Japan. Backlund and Inoki finished the tournament with seven wins and two double-countout decisions. Also during 1980, Backlund and Hogan met in a series of highly publicized matches; although he scored several countout victories over Hogan, Backlund never was able to score a decisive victory over his charismatic young challenger, and Hogan – showing flashes of his future superstardom – proved to be one of Backlund's toughest opponents. Backlund was also able to overcome a challenge from Ken Patera, with whom he feuded on-and-off from 1978 until early 1981, including during Patera's reign as WWF Intercontinental Heavyweight champion. Early 1980s: continued success Backlund's WWF Heavyweight Championship was held up after a match in New York City against Greg "the Hammer" Valentine on October 19, 1981, after a dazed referee "accidentally" gave the championship belt to Valentine as part of the storyline, it constituted an interruption of Backlund's title reign. However, Backlund was billed as the WWF Heavyweight champion in other cities in the days following the controversy. In the early part of the 1980s, when no promotion held nationally televised events, it was not uncommon practice to "hold up" the title in one area (to build interest in a rematch the "former" champion would win) while ignoring the situation in other parts of the territory. On November 23, Backlund pinned Valentine for the "vacant in New York only" WWF Heavyweight Championship. A rematch for the title, held inside a steel cage at the Philadelphia Spectrum in January 1982, also saw Backlund emerge the winner, securing the victory when he hit a piledriver on Valentine onto the mat. Even with the title being held up against Inoki and Valentine, Backlund is recognized by WWE as having one continuous title reign from 1978 to 1983 as WWE champion. Backlund continued to be successful into