MMA in May kicked off with ONE FC 15. Lightweight Eduard Folayang defeated the man they call "no face", Kotetsu Boku by unanimous decision. In the main event Bibiano Fernandes successfully defended his Bantamweight belt against Masakatsu Ueda by unanimous decision.
Up next was Bellator 118. Andrey Koreshkov moved on to the season 10 Welterweight tournament final by knocking out Justin Baesman with a flying knee fit for a highlight tape. The KO came at 1:41 of round 1. The main event saw Joe Warren become the first man in Bellator to have won belts in two different weight classes. Warren, the former Featherweight champion, defeated Rafael Silva by unanimous decision to become the interim Bantamweight champion. His next fight will be against current Bantamweight champion Eduardo Dantas.
The main event of Cage Warriors 68 saw Welterweight Danny Roberts earn a TKO win over veteran Jim Wallhead at 4:49 of round 1.
Andrei Arlovski's return to the UFC will be against fellow Heavyweight Brendan Schaub at UFC 174 on June 14.
The UFC is suing a New York man for allegedly pirating the promotions fights. If true, the man could be forced to fork over $32 million.
WSOF 11 has added a Welterweight contest between former UFC fighters Jon Fitch and Jake Shields. The fight will serve as the co-main event.
A third title fight has been added to WSOF 10. This one will feature Jessica Aguilar attempting to defend her Women's Strawweight belt for the first time against Emi Fujino.
UFC Featherweight champion Jose Aldo will defend his title against Chad Mendes in the main event of UFC 176. The two first fought at UFC 142 with Aldo finishing the fight by KO (knee) late in round 1.