Is considered as one of the pioneer of MMA in Japan alongside
Pro-Wrestling legend Antonio Inoki.
At the time Funaki challenged Rickson Gracie, the Japanese fighter was
twelve years younger than his opponent (Rickson was 42).
Lost to Brazilian Jiu-Jitsu legend Rickson Gracie, by rear naked choke,
on C2K championship 2000. It was Funaki's last fight.
Holds significant wins over MMA most dangerous fighters. Among others :
Bas Rutten, Ken Shamrock, Frank Shamrock, Semmy Schilt, Vernon "Tiger"
White, Yuki Kondo, Guy Mezger and Minoru Suzuki.