佐々木健介
In 2001, Takayama declared free agency from Noah so he could pursue MMA, as well as matches in New Japan Pro-Wrestling, where he began challenging the top stars, such as Yuji Nagata, Masahiro Chono, and Hiroyoshi Tenzan. In 2003 and 2004 he participated in New Japan's annual G1 Climax tournament. In mid-2004 he affiliated himself with former Pancrase wrestler Minoru Suzuki, and they won the IWGP Tag Team Championship, but he suffered a stroke later in the year following a brutal match with Kensuke Sasaki. During his time away from the ring, Takayama provided occasional colour commentary for Pro Wrestling Noah, famously saying, "I hope this never ends" during a chop exchange between Kenta Kobashi and Kensuke Sasaki on the July 18, 2005 "Destiny" show. In June 2006, Pro Wrestling Noah announced that Takayama would return at the July 16 Nippon Budokan show, and would team with Kenta Kobashi to take on Jun Akiyama and Mitsuharu Misawa. The match was later changed due to Kobashi needing surgery to remove a cancerous tumor, leading to Takayama teaming with Kensuke Sasaki against Akiyama and Misawa. However, when Kenta Kobashi returned, it would be in the same match, teaming with Yoshihiro Takayama to take on Jun Akiyama and Mitsuharu Misawa.