Later in his life, following the ideas of Kyokushin founder Mas Oyama, he trained in Wrestling and Boxing in an attempt to make his style more complete.

[2] According to him, he was initially pitted against Royce Gracie in the first round of the tournament, but when the organizers found out that Gordeau had previously competed in Fighting Network Rings, they changed the matchup: Gracie would fight Boxer Art Jimmerson instead, while Gordeau would face 400 pound Sumo expert Teila Tuli on the opposite side of the bracket.

[9][12] Doctors attended him but, not wanting Gordeau to have an open wound, and having determined that it would get infected if they tried to extract the teeth, they simply taped his foot.

Still, Gordeau dominated the fight easily, driving Rosier against the fence with multiple leg kicks and jabs while keeping distance.

After half a minute of harassment, Gordeau pushed Rosier down to the mat with knee and elbow strikes to the head, forcing him to cover down shielding his face,[9] and then finished him with a stomp to the liver.

During the fight, Royce attempted a double leg takedown followed by a kosoto gake, but Gordeau blocked them and clamped to the cage wall to avoid being taken down.

[6] In 2012, Royce would visit Gordeau's dojo in The Hague to train, about which the Dutch fighter stated: "It was the first time after 20 years that we spoke.

He had been in the previous edition as a cornerman, helping to train fellow UFC competitor Dave Levicki for his unsuccessful match against Royce's brother Rickson.

However, after a third round passed again on the ropes, Nakai scored a double leg takedown against the ring corner, escaped from a guillotine choke attempt by Gordeau, and dropped down for another heel hook, this time managing to submit the Dutchman after half an hour of fighting.

Gordeau runs an International Karate Organization Archived 2019-09-09 at the Wayback Machine together with Pepels, and teaches at camps and seminars worldwide.

Gordeau had his debut in professional wrestling on 13 August 1988 in shoot style promotion UWF Newborn, losing a special match against Akira Maeda.

He took part in the infamous 1.4 Incident, which occurred on 4 January 1999 at the Tokyo Dome, where UFO member Naoya Ogawa faced Shinya Hashimoto in a pro wrestling match.

He returned to the promotion in 2010 at Zero1's Yasukuni Shrine Festival, where he teamed up with his former student Ryoji Sai to defeat Munenori Sawa and Akebono.