Strikeforce World Grand Prix Semi-Finals: Barnett vs. Kharitonov

One of the sport’s pound-for-pound elite returns this fall to defend his title against one of the division’s most dangerous fighters. Featherweight champion Jose Aldo, universally recognized as the number one ranked lighter weight fighter in MMA, makes the second defense of his crown against judo ace Manny Gamburyan when World Extreme Cagefighting invades the 1STBANK Center in Broomfield, Colo. on Thursday, Sept. 30. In addition to the featherweight title fight, Denver native Donald “Cowboy” Cerrone will meet former lightweight champion Jamie Varner in a long-awaited grudge match. Plus, former bantamweight champion Miguel Angel Torres returns to the cage to take on the red-hot Charlie Valencia.

UFC 91: Couture vs. Lesnar was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on November 15, 2008, at the MGM Grand Garden Arena in Las Vegas, Nevada. The main event featured the return of UFC Heavyweight Champion Randy Couture versus WWE's Brock Lesnar in a title bout. The decision to grant Lesnar—who was 1–1 in UFC fights at the time—the title shot was controversial at the time. Some felt it was premature and marketing driven, while others argued the relative lack of depth in the heavyweight division at the time left no clear-cut contenders to the belt.

UFC 90: Silva vs. Côté was a mixed martial arts (MMA) pay-per-view event held by the Ultimate Fighting Championship (UFC) on October 25, 2008, at the Allstate Arena in Rosemont, Illinois. The main event featured UFC Middleweight Champion Anderson Silva vs. number #1 contender Patrick Côté.

UFC 55: Fury was a mixed martial arts event held by the Ultimate Fighting Championship on October 7, 2005 at the Mohegan Sun Arena in Uncasville, Connecticut. UFC heavyweight champion Andrei Arlovoski defends his title against hard-hitting Mexican striker Paul Buentello. The undercard is highlighted by The Ultimate Fighter Season 1 winner Forrest Griffin as he takes on Australia's Elvis Sinosic.

UFC 54: Boiling Point was a mixed martial arts event held by the Ultimate Fighting Championship on August 20, 2005, at the MGM Grand Arena in Las Vegas, Nevada.. UFC Light Heavyweight Champion Chuck Liddell makes his first title defense against the man who handed him his first ever defeat – Jeremy Horn. The undercard features the return of Randy "The Natural" Couture, the UFC debut of The Ultimate Fighter winner Diego Sanchez, and a highly anticipated welterweight match-up between Georges St. Pierre and Frank Trigg.