This Month’s MMA Birthdays: Michael Bisping Turns 40 Michael Bisping’s achievements in mixed martial arts seemed destined to age well, even as he goes down in history as one of the sport’s most polarizing figures. One of 10 men who have captured the undisputed...

This Month’s MMA Birthdays: ‘Rampage’ Jackson Turns 40 He was a force of nature in his prime, a terrifying physical specimen in which power, speed and a zeal for doing harm to others merged. Quinton...

This Month’s MMA Birthdays: Colby Covington Turns 30 The American Top Team standout has become one of the sport’s most polarizing figures while also emerging as one of its premier welterweights.

This Month’s MMA Birthdays: Rose Namajunas Turns 25 The No. 1 contender for the Ultimate Fighting Championship women’s strawweight crown will celebrate her 25th birthday on June 29.

Sherdog’s Top 10: Lightweights of All-Time The cutthroat 155-pound weight class has given rise to some of the greatest fighters in mixed martial arts history.

This Month’s MMA Birthdays: Roy Nelson Turns 40 “The Ultimate Fighter 10” winner and former International Fight League champion has carved out a long, successful career in the heavyweight...

Sherdog’s Top 10: Japanese Fighters From Caol Uno to the incomparable Kazushi Sakuraba, the Land of the Rising Sun has a long history of enriching mixed martial arts.

This Month’s MMA Birthdays: Mark Coleman Turns 50 An ahead-of-his-time innovator who left his imprint on the world of mixed martial arts, Mark Coleman will celebrate his 50th birthday on Dec. 20.

This Month’s MMA Birthdays: Dan Henderson Turns 44 A two-time Olympian and former two-division Pride Fighting Championships titleholder, Dan Henderson will celebrate his 44th birthday on Aug. 24.

Pictures: Bellator 121 Keith Mills was cageside in Thackerville, Okla., for Bellator 121.