'Toquinho' Palhares Kneebars Jon Fitch in 90 Seconds, Retains Title at WSOF 16 This time, it took just 90 seconds for Rousimar Palhares to leave his calling card.

In the headliner of World Series of Fighting 16 from the McClellan Conference Center in Sacramento, Calif., the WSOF...

What to Watch For: World Series of Fighting 16 Jon Fitch will take aim at the WSOF welterweight title on Saturday, when he tangles with Rousimar Palhares in Sacramento, Calif.

Fact Check: World Series of Fighting 16 The Las Vegas-based promotion closes out its 2014 schedule on Saturday, accompanied by an ample amount of obscure data and statistical minutiae.

WSOF Hits Sacramento with Palhares vs. Fitch; Tickets On Sale Now (PRESS RELEASE) -- LAS VEGAS — World Series of Fighting (WSOF) announced today that it will bring it’s highly-anticipated world championship Mixed Martial Arts (MMA) event, headlined by a welterweight (170 pounds) title fight between reigning champion...

WSOF Grants Former Welterweight Champion Steve Carl Release from Contract Former World Series of Fighting welterweight champion Steve Carl is officially a free agent.

Josh Burkman on UFC Return, ‘Bitter’ Ben Askren, ‘Overblown’ Twitter Joke Josh Burkman’s return to Ultimate Fighting Championship wasn’t some long, drawn-out process. In fact, the former World Series of Fighting...

Rousimar Palhares to Defend Welterweight Title Against Jon Fitch at WSOF 16 Rousimar Palhares will defend his World Series of Fighting 170-pound title against Jon Fitch at WSOF 16 on Dec. 13.

Hawkeye at Heart An extended run of success and World Series of Fighting title shot coincide with Derrick Mehmen’s return to his home state.

Updated: Welterweight Josh Burkman Returns to Octagon, Faces Hector Lombard at UFC 182 Former World Series of Fighting welterweight title contender Josh Burkman has signed with the UFC.

Sherdog’s Top 10: Stick-and-Ball Crossovers Many athletes who have enjoyed success in traditional sports have found their way into mixed martial arts competition.