(UFC, RFA) Sean Sherk - (KOTC, PRIDE, UFC) Chase Sherman - (UFC, Titan FC) Katsuyori Shibata - (K-1, DEEP, DREAM, K-1 Hero's, Jungle Fight) Jake Shields - (EliteXC, Pancrase, Shooto, K-1 Hero's, Strikeforce, UFC, WSOF) Suguru Shigeno - (Shooto) Kiyotaka Shimizu - (Shooto, Pancrase, DEEP) Yuya Shirai - (DEEP, DREAM, BAMMA, Pancrase, OneFC, M-1) Wes Shivers - (KOTC, Strikeforce, ShoXC) Alexander Shlemenko - (Bellator, SFL, ShoXC, Jungle Fight, M-1) Josh Shockley - (UFC, Bellator) Akira Shoji - (Cage Rage, DEEP, KOTC, Pancrase, PRIDE) Yuki Shoujou - (Shooto) Sam Sicilia - (UFC, Bellator) Kirill Sidelnikov - (Affliction, M-1) Steven Siler - (UFC, TPF) Siala-Mou "Mighty Mo" Siliga - (K-1 Hero's, Bellator) Anderson "The Spider" Silva - (Cage Rage, PRIDE, Shooto, UFC) Antônio "Bigfoot" Silva - (K-1 Hero's, EliteXC, CWFC, Sengoku, Strikeforce, UFC) Assuerio Silva - (Pancrase, Jungle Fight, UFC, PRIDE) Cláudio Silva - (BAMMA, SFL, UFC) Erick Silva - (Jungle Fight, UFC) Jay Silva - (UFC, KSW, Bellator, MFC, TPF) Joaquim Silva - (UFC) Paulo "Giant" Silva - (K-1 Hero's, PRIDE) Rafael Silva - (Bellator) Thiago Silva - (Pancrase, Shooto, UFC, WSOF) Wanderlei "The Axe Murderer" Silva - (PRIDE, UFC) Elias Silvério - (UFC, Jungle Fight) Aaron Simpson - (UFC, WEC, WSOF) Heath Sims - (Pancrase) Wes Sims - (K-1, IFL, Strikeforce, WEC, UFC) Lodune Sincaid - (WEC, UFC, WFA, PFC) Rory Singer - (PRIDE, KOTC, UFC, MFC) Elvis Sinosic - (Cage Rage, Pancrase, UFC, K-1, RINGS) Dennis Siver - (UFC, CWFC) Chas Skelly - (UFC, Bellator) Matt Skelton - (PRIDE) Shanon Slack - (Bellator) Ray Sloan - (Bellator) Paul Slowinski - (KSW) Kestutis Smirnovas - (RINGS, PRIDE, Shooto, K-1, K-1 Hero's) Anthony Smith - (Strikeforce, UFC, Bellator) Colton Smith - (M-1, UFC) David Smith - (Strikeforce) Jordan Smith - (Bellator) Maurice "Mo" Smith - (IFL, Pancrase, PRIDE, UFC, Sengoku, Strikeforce, RINGS) Patrick Smith - (K-1, UFC, Titan FC, YAMMA) Scott Smith - (Strikeforce, EliteXC, PFC, UFC, WEC) Trevor Smith - (Strikeforce, UFC) Louis Smolka - (UFC, KOTC) André Soares - (Shooto, CWFC, EliteXC) Peter Sobotta - (UFC, KSW) Renato Sobral - (RINGS, UFC, Jungle Fight, Cage Rage, Affliction, Strikeforce, OneFC, Bellator) Rameau Thierry Sokoudjou - (PRIDE, WEC, UFC, DREAM, Affliction, Strikeforce, MFC, KSW, Bellator) Roberto Soldić - (Final Fight, Cage Warriors, KSW) Rambaa Somdet - (Shooto, DEEP, PFC) Joe Son - (PRIDE, UFC) Chael Sonnen - (Pancrase, WEC, UFC) Sean Soriano - (UFC) Chandet Sorpantrey - (K-1) Krzysztof Soszynski -