Sherdog’s Top 10: MMA Upsets Mixed martial arts, like other sports, has enjoyed its share of David vs. Goliath moments over the years.

Forget Me Not Former Strikeforce champion Jake Shields returns to the Octagon at UFC 161 as a defiant underdog.

ROLLES GRACIE INJURED; JACOB VOLKMANN VS. LYLE BEERBOHM ADDED TO LIVE NBC SPORTS NETWORK TELEVISED PORTION (PRESS RELEASE) -- LAS VEGAS, Nev. (June 5, 2013) – A wrist sprain has forced heavyweight rising star Rolles Gracie (8-1) out of his World Series of Fighting Mixed Martial Arts (MMA) matchup with Dave Huckaba (20-5). Replacing the bout on the four-fight, live NBC Sports...

UFC on FX 8 Preview Former Strikeforce champion Luke Rockhold looks to leave a strong first impression in his UFC debut against Vitor Belfort.

New World Series of Fighting Co-Main Event: Tyson Steele vs. Steve Carl on June 14 (PRESS RELEASE) -- LAS VEGAS, Nev. (May 3, 2013) – World Series of Fighting announced today a new co-main event matchup between streaking, prolific welterweight (170 pounds) rising stars and fearsome submission aces...

UFC on Fuel TV 7 Prelims: Renee Forte Bullies Terry Etim, Earns Unanimous Decision Terry Etim did not enjoy his homecoming.

UFC on Fuel TV 7 Preview For the first time, the UFC is offering a title bout on a Fuel TV card, as Renan Barao defends his interim bantamweight strap against Michael...

UFC 155 ‘Dos Santos vs. Velasquez 2’ Preview Heavyweight champion Junior dos Santos will defend his title against the man he took it from in 2011.

UFC on FX 5 Prelims: Michael Johnson Topples Danny Castillo, Mike Pierce Flattens Aaron Simpson As he was getting battered for the majority of the first five minutes of his lightweight showdown with Danny Castillo, Michael Johnson looked nothing like the future champion teammate...

UFC on FX 5 Notebook: Flyweight Frenzy John Dodson has his eyes on Jussier da Silva -- and UFC flyweight gold.