On October 13 , 2014 , at King of Pro-Wrestling , Yamamoto , billed as `` Yoshitatsu '' , returned to New Japan , attacking Jeff Jarrett when he interfered in the main event match and , in doing so , helped Hiroshi Tanahashi defeat A.J. Styles for the IWGP Heavyweight Championship .
On October 13 , 2014 , at King of Pro-Wrestling , Yamamoto returned to New Japan Pro Wrestling . He attacked Jeff Jarrett when Jarrett had interfered in the main event match and , in doing so , he helped Hiroshi Tanahashi defeat A.J. Styles for the IWGP Heavyweight Championship .