Kuniaki Kobayashi
During a tag team match on April 3, 1983 he was injured by Dynamite Kid; two days later, he was forced to vacate the NWA World Junior Heavyweight title after it became clear that he would need time off to recuperate. However, once the determined Tiger Mask recovered, he regained his NWA World Junior Heavyweight Championship by defeating Kuniaki Kobayashi on June 2, 1983, making him a simultaneous NWA/WWF Jr. champion for the second time. By 1983, however, Sayama started feeling dissatisfied as he hated the politics behind-the-scenes. As a result, he announced his retirement from active competition on August 12, 1983. His last match occurred on August 4, facing Isamu Teranishi. It was a shock to the wrestling world, as Tiger Mask was going to retire while he was at the top of his game and as the holder of two Junior Heavyweight Championships. Both titles were declared vacant, as he became a trainer to martial arts fighters.