in All Japan against the likes of Genichiro Tenryu, Riki Choshu, Jumbo Tsuruta, Harley Race, and Kerry Von Erich. On October 21, 1985, Flair wrestled Rick Martel in a double title match where he defended the NWA World Heavyweight Championship and challenged for the AWA World Heavyweight Championship, but the match ended in a double countout. As All Japan withdrew from the National Wrestling Alliance (NWA) in the late 1980s, World Championship Wrestling (WCW) began a working agreement with New Japan Pro-Wrestling (NJPW). In 1989, the working agreement led to a feud between Flair and Keiji Mutoh, who was wrestling under The Great Muta gimmick, in the United States for WCW. On March 21, 1991, Flair defended the NWA World Heavyweight Championship and challenged Tatsumi Fujinami for the IWGP Heavyweight Championship in a double title match on the WCW/New Japan Supershow at the Tokyo Dome. Fujinami beat Flair for the NWA World Heavyweight Championship, but later lost the title at WCW's SuperBrawl I on May 19, 1991, in the United States. On January 2, 2013, All Japan announced that Flair would make his return to AJPW for the first time in five years on January 26, 2013, teaming with Keiji Mutoh to take on Tatsumi Fujinami and Seiya Sanada. This would have been his first professional wrestling match since his September 2011 loss to Sting on Impact Wrestling and his first for All Japan since March 1987. However, on January 26, just moments before the start of the All Japan event, the promotion announced that Flair was forced to pull out of his match because of a "sudden illness", later reported as a badly swollen left leg. Flair was replaced in the match by his son Reid, but also ended up getting involved in the match himself, delivering chops to Seiya Sanada. World Wrestling Federation (1991–1993) Flair signed with the World Wrestling Federation (WWF) in August 1991 and began appearing on television with the Big Gold Belt, calling himself "The Real World's Champion". His first match with the promotion saw him squash Jim Powers on an episode of WWF Wrestling Challenge that aired on September 29. Led by his "financial adviser" Bobby Heenan and his "executive consultant" Mr. Perfect, Flair repeatedly issued challenges to WWF wrestlers like "Rowdy" Roddy Piper and Hulk Hogan, wrestling a team led by Piper at Survivor Series in November 1991 and helping The Undertaker defeat