Sherdog’s Official Mixed Martial Arts Rankings It was a big weekend for fighters in the heaviest and lightest weight classes of the Ultimate Fighting Championship, as well as a few in between.

Pictures: WSOF 15 David Branch, Justin Gaethje and Jessica Aguilar picked up impressive wins at World Series of Fighting 15.

Branch, Gaethje, Aguilar Taste Victory at World Series of Fighting 15 TAMPA, Fla. -- World Series of Fighting middleweight champion David Branch notched a TKO victory over former Ultimate Fighting Championship title challenger Yushin Okami to cap off...

World Series of Fighting 15 Results: Play-by-Play & Updates Sherdog.com reports from the USF Sun Dome in Tampa, Fla., at approximately 7 p.m. ET with live World Series of Fighting 15 play-by-play.

World Series of Fighting 15 Weigh-in Results: Melvin Guillard Misses Weight For Title Fight World Series of Fighting is back with another mixed martial arts offering, this time serving up World Series of Fighting 15.

What to Watch For: World Series of Fighting 15 Justin Gaethje will put his perfect record and lightweight title on the line against Melvin Guillard on Saturday in Tampa, Fla.

Beatdown: Bec Rawlings, Jessica Aguilar TJ De Santis and Jesse Denis returned to the Sherdog Radio Network Wednesday for another edition of "Beatdown." Joining them today were straweights Bec Rawlings and...

WSOF 15: "Macaco" Patino vs. Eric Reynolds Added To Live NBCSN Telecast (PRESS RELEASE) -- LAS VEGAS — A lightweight (155 pounds) contest between legendary MMA pioneer and Brazilian Jiu-Jitsu and Judo black belt Jorge Patino (35-15-2) of Houston, Texas and battle-tested finisher...

‘Macaco’ Patino-Eric Reynolds Lightweight Fight Joins WSOF 15 Main Card World Series of Fighting has added a lightweight contest between Brazilian veteran Jorge Patino and Floridian Eric Reynolds to the televised main card of next weekend’s...

Tickets on Sale Friday for WSOF Championship Tripleheader in Tampa, Fla. (PRESS RELEASE) -- LAS VEGAS — Tickets for the highly-anticipated, live NBC Sports Network (NBCSN)-televised World Series of Fighting...