Satoshi Kojima is a Japanese professional wrestler. He is currently signed to New Japan Pro-Wrestling, but he makes appearances for Pro Wrestling Noah, All Japan Pro Wrestling (AJPW) and Major League Wrestling (MLW), where he is the current MLW World Heavyweight Champion in his second reign and one-half of the current MLW World Tag Team Champions in his first reign. Considered to be one of the greatest Japanese professional wrestlers of the 21st century and of all-time, he was the first wrestler to hold NJPW's IWGP Heavyweight Championship and AJPW's Triple Crown Championship simultaneously, the fourth to win the three major heavyweight championships in Japan with the Triple Crown Heavyweight, IWGP Heavyweight, and Noah's GHC Heavyweight Championship, and one of three wrestlers to hold the IWGP Heavyweight Championship, Triple Crown Championship, and NWA Worlds Heavyweight Championship, and is an overall eight-time world champion in major professional wrestling promotions.

All Japan Pro Wrestling (AJPW/AJP) or simply All Japan is a Japanese professional wrestling promotion established on October 21, 1972, when Giant Baba split away from the Japanese Wrestling Association and created his own promotion. Many wrestlers had left with Baba, with many more joining the following year when JWA folded. From the mid-1970s, All Japan was firmly established as the largest promotion in Japan. As the 1990s began, aging stars gave way to a younger generation including Mitsuharu Misawa, "Dr. Death" Steve Williams, Kenta Kobashi, Gary Albright, Toshiaki Kawada, Mike Barton, Akira Taue and Jun Akiyama, leading to perhaps AJPW's most profitable period in the 1990s.