UFC 181 Notebook: Idle No More Lightweight champion Anthony Pettis does not foresee inactivity being an issue ahead of his showdown with Gilbert Melendez.

Interim Epidemic: A History of Heavyweight Placeholders No division has been more volatile in terms of championship gold than heavyweight, where five men have held the interim title.

RFA 21 GETS A NEW TITLE FIGHT JUUSOLA vs. BAGHDAD IN COSTA MESA, CALIFORNIA (PRESS RELEASE) -- LAS VEGAS, Nevada — Resurrection Fighting Alliance (RFA) president Ed Soares announced today that the promotion will feature a new main event as the promotion heads back to southern California in December. RFA 21 - Juusola vs. Baghdad will feature a main event between two of the world's most exciting lightweights as Minnesota native and collegiate wrestler...

RFA 21 IN COSTA MESA, CA DEC 5, TICKETS ON SALE NOW! (PRESS RELEASE) -- LAS VEGAS, Nevada - Resurrection Fighting Alliance (RFA) president Ed Soares announced today that the RFA's next lightweight champion will be crowned in his promotion's next trip to southern California in December. RFA 21 - Baghdad vs. Ambrose will feature a main event between two of the world's most exciting lightweights as WKBC Muay Thai world champion...

By the Numbers: UFC 179 Jose Aldo quieted the critics at UFC 179, taking a five-round unanimous decision victory over Chad Mendes in what was one of the best fights of 2014.

Sherdog’s Top 10: Successful Olympic Crossovers The Olympics served as a staging point for some of the most accomplished fighters in mixed martial arts history.

What to Watch For: Bellator 126 Alexander Shlemenko defends his middleweight crown against the fast-rising Brandon Halsey on Friday in Phoenix.

Sherdog's Official Mixed Martial Arts Rankings Welcome back, Andrei Arlovski.

Sherdog’s Official Mixed Martial Arts Rankings While the Ultimate Fighting Championship may not be prepared to offer him a title shot just yet, Ronaldo “Jacare” Souza is certainly making...

This Month’s MMA Birthdays: Fedor Emelianenko Turns 38 Fedor “The Last Emperor” Emelianenko turns 38 on Sept. 28. | Photo: Dave Mandel/Sherdog.com More than two years after his...