WEC, TPF) Jimmie Rivera - (KOTC, Bellator, WSOF, Cage Rage) Jorge Rivera - (UFC, Cage Rage, CWFC, UFC) Pedro Rizzo - (PRIDE, UFC, Affliction, M-1) Karl Roberson - (UFC) Andre Roberts - (UFC, WEC) Daniel Roberts - (UFC, Titan FC) Danny Roberts - (CWFC, UFC) Kenny Robertson - (UFC, Bellator, Cage Rage) Alvin Robinson - (UFC, Bellator, Titan FC) Carlos Eduardo Rocha - (UFC) Vagner Rocha - (Bellator, Strikeforce, UFC) Luke Rockhold - (Strikeforce, UFC) Jose "Dos Caras, Jr." Rodríguez - (DEEP, PRIDE) Ricco Rodriguez - (KOTC, PRIDE, UFC, WEC, WFA, IFL, EliteXC, BAMMA, Bellator, YAMMA) Yair Rodríguez - (UFC) Marcos Rogério de Lima - (UFC, Strikeforce, Shooto) Brett Rogers - (Bellator, Strikeforce, EliteXC, Titan FC) Brian Rogers - (Bellator, Strikeforce) Shane Roller - (WEC, UFC) Ricardo Romero - (UFC) Yoel Romero - (UFC, Strikeforce) Jesse Ronson - (UFC) George Roop - (WEC, UFC) Rene Rooze - (K-1, VTJ) João Roque - (DEEP, Shooto, VTJ, UFC, WFA) Aaron Rosa - (UFC, ShoXC, Adrenaline MMA, Strikeforce, Bellator, Titan FC) Charles Rosa - (UFC) Jake Rosholt - (UFC, WEC, Bellator, Titan FC) Jared Rosholt - (UFC, Titan FC, WSOF) Kevin Rosier - (UFC) Ben Rothwell - (M-1, KOTC, IFL, Adrenaline MMA, Affliction, UFC) Rick Roufus - (Strikeforce) Khalil Rountree Jr. - (UFC, RFA) Chad "Akebono" Rowan - (K-1 Hero's) Jairzinho Rozenstruik - (UFC) Mauricio "Shogun" Rua - (PRIDE, UFC) Murilo "Ninja" Rua - (Cage Rage, EliteXC, Strikeforce, PRIDE, DREAM, BAMMA, Shooto) Marco Ruas - (IFL, PRIDE, UFC) Gabe Ruediger - (WEC, UFC, PFC) Anthony Ruiz - (KOTC, WEC, EliteXC, Strikeforce, ShoXC, PFC, TPF) Mike Russow - (UFC, PRIDE, Adrenaline MMA) Ed Ruth - (Bellator) Bas Rutten - (Pancrase, UFC, WFA) S Amir Sadollah - (UFC) Frankie Saenz - (KOTC, UFC) Saparbek Safarov - (UFC, M-1) Tarec Saffiedine - (Shooto, DREAM, Strikeforce, UFC) Tomoyuki Saito - (Shooto) Yukio Sakaguchi - (Pancrase, Shooto, DREAM, Sengoku) Augusto Sakai - (UFC, Bellator) Kazuhiro Sakamoto - (Shooto) Mitsuhiro Sakamoto - (Shooto) Alessio Sakara - (CWFC, MFC, Jungle Fight, UFC, Bellator) Wataru Sakata - (PRIDE, RINGS) Gokhan Saki - (UFC) Kazushi "Gracie Hunter" Sakuraba - (K-1 Hero's, PRIDE, UFC, DREAM) Naoki Sakurada - (Shooto, VTJ) Hayato Sakurai - (VTJ, DEEP, PRIDE, Shooto, UFC, DREAM) Justin Salas - (UFC) Ivan Salaverry - (K-1, Shooto, UFC, WFA, BAMMA) Marcello Salazar - (IFL) Sean Salmon - (UFC, Strikeforce, KOTC) John Salter - (UFC, XFC, Adrenaline MMA, KOTC) Zabit Samedov Josh Samman