Two Title Fights Headline Rizin 51 on Sept. 28 Rizin Fighting Federation’s next event will include a pair of title fights at the top of the bill.

Sherdog’s Top 10: Greatest Fighters of the 2000s Lev Pisarsky presents Sherdog's list of the greatest fighters of the 2000s.

Sherdog’s Top 10: Heaviest Hitters Lev Pisarsky presents Sherdog's list of the heaviest pound-for-pound hitters in MMA history.

Sherdog’s Top 10: Greatest Canadian Fighters Lev Pisarsky presents Sherdog's list of the greatest fighters ever to hail from Canada.

Sherdog’s Top 10: Greatest Brazilian Fighters Lev Pisarsky presents Sherdog's list of the 10 greatest fighters from the birthplace of BJJ and vale tudo.

Sherdog’s Top 10: Greatest Japanese Fighters Lev Pisarsky presents Sherdog's list of the 10 greatest mixed martial artists to hail from the Land of the Rising Sun.

Sherdog’s Top 10: Greatest Pride FC Fighters Lev Pisarsky presents Sherdog's list of the greatest fighters in Pride Fighting Championships history.

Sherdog’s Top 10: Greatest Pound-for-Pound Men Lev Pisarsky presents Sherdog's list of the 10 (well, 11) greatest pound-for-pound fighters in MMA history.

Opinion: A Comparison of Future GOATs Is it possible to look at a young star and spot a future legend? Sherdog's Lev Pisarsky takes three fighters who often occupy "greatest of all-time" discussions, and compares their achievements at age 26,...

This Month’s MMA Birthdays: Rich Franklin Turns 41 He is one of six men to capture the undisputed Ultimate Fighting Championship middleweight crown and became one of MMA’s most effective...