Sherdog’s Official Mixed Martial Arts Rankings After 2,457 days, Anderson Silva’s reign atop the middleweight division has ended.

Josh Samman Replaces Nick Ring, Faces Uriah Hall at UFC on Fox Sports 1 in Boston “The Ultimate Fighter 17” knockout artist Uriah Hall will attempt to capture his first official Octagon victory against former castmate Josh...

MAURICIO ‘SHOGUN’ RUA VS. CHAEL SONNEN HEADLINES STACKED CARD IN BOSTON AUG. 17 (PRESS RELEASE) -- Las Vegas, Nevada – Former UFC® and PRIDE® champion Mauricio Rua (21-7, fighting out of Curitiba, Brazil) will meet controversial and charismatic light heavyweight contender...

Tickets On Sale Tomorrow For World Series of Fighting In Ontario, Calif; Six Bouts Announced (PRESS RELEASE) -- LAS VEGAS, Nev. (June 20, 2013) –Tickets priced from $29, for the star-studded World Series of Fighting Mixed Martial Arts...

Top 5 Stories of the Week

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Forrest Griffin has fought his last bout as a mixed martial artist.

Ultimate Fighting Championship President Dana White announced the former light heavyweight champion’s retirement from active competition on May 25 following UFC 160 at MGM Grand Garden Arena in Las Vegas, revealing that Griffin will remain with the company in a front-office role, a la Chuck Liddell and Matt Hughes.

“Forrest Griffin has been a huge star for us,” White said. “Anytime we’ve ever needed Forrest Griffin, he’s been there for us. He will stay with this company at least for the rest of my life.”

Griffin began his professional career in 2001, debuting with a loss to future UFC hall of famer Dan Severn. He won nine of his next 10 before joining the cast of “The Ultimate Fighter,” winning the show’s inaugural season by topping Stephan Bonnar in a highly publicized barnburner on live TV in 2005. The light heavyweight then won five of his next seven bouts, capping that stretch with an upset of Pride Fighting Championships standout...

‘TUF’ Alums Uriah Hall, Nick Ring to Collide at Inaugural Fox Sports 1 Event in August A middleweight showdown between Uriah Hall and Nick Ring has been added to the UFC’s Aug. 17 debut on Fox Sports 1.

UNDEFEATED RISING STAR NICK NEWELL SIGNS WITH WORLD SERIES OF FIGHTING (PRESS RELEASE) -- LAS VEGAS, Nev. (May 28, 2013) – Unbeaten inspiration “Notorious” Nick Newell (9-0) of Springfield, Mass. has signed a...

UFC on Fox 7 Notebook: Back Where He Belongs Josh Thomson welcomes his return to the Octagon on Saturday in San Jose, Calif., nearly a decade after he last competed inside it.

Thursday MMA: A TV Viewer’s Guide Thursday 3:00 a.m. ET Sportsnet Pacific: UFC Central Hosted by "Showdown" Joe Ferraro. UFC highlights and news. 4:00 a.m. ET...

Top 5 Stories of the Week Ken Shamrock has not fought in more than two years. | Photo: Jeff Sherwood/Sherdog.com Two of the elder statesmen in mixed martial...