and May 2005 from Satoshi Kojima). He lost the championship to AJPW Triple Crown Heavyweight Champion Kojima in a cross-promotional champion vs. champion match. The match had a unique finish designed to fool fans in attendance. The idea was to make it look like the match was going to end in a 60-minute time limit draw. However, with just seconds before the match would be declared a time limit draw, Tenzan, who was known to have a legitimate back injury, could not continue, resulting in Kojima being declared the winner and becoming the new IWGP Heavyweight Champion. NJPW officials had come up with the finish, which was designed to look like a "mistake", having agreed with AJPW that it would be better if Kojima won the match, but not wanting the match to end in a standard pinfall or submission. Tenzan defeated Kojima in a rematch three months later, bringing the championship back to NJPW. He lost the championship to Kazuyuki Fujita on July 18, 2005. Tenzan competed in the 2005 G1 Tournament, and almost made it to the semi-finals. In October 2005, Tenzan and Chono reunited to win the IWGP Tag Team Title for a fifth time from Hiroshi Tanahashi and Shinsuke Nakamura. On August 13, 2006 Tenzan defeated longtime rival Satoshi Kojima in the final of the 2006 G1 Climax, becoming only the second wrestler to go undefeated in a round robin style G-1. This would be his third G1 title. After severing ties with his old mentor Masahiro Chono, Tenzan founded the heel unit GBH ("Great Bash Heel", affectionately referred to by fans as "Great Big Head"); it was composed of Tenzan, Togi Makabe, Shiro Koshinaka, Toru Yano, Tomohiro Ishii and Tomoaki Honma. In February 2008, GBH turned on Tenzan with Makabe taking over the leadership of the group. Tenzan feuded with his former stablemates until the following October. Since returning to New Japan in May 2009, he has split his time between reforming Tencozy and teaming with old GBH teammates Makabe and Honma against CHAOS. In August 2009 Tenzan was sidelined with an injury. Fifteen months later on November 18, 2010, Tenzan returned to the ring, defeating Antonio Honda at New Japan's NEVER.4 event. On December 11 Tenzan wrestled his first main show for New Japan since his return, defeating Gedo in Osaka. After the match Tenzan was attacked by Takashi Iizuka, restarting the feud between