Gleison Tibau will step into the Octagon to face Caol Uno at UFC Fight Night 21 in Charlotte, N.C., on March 31, and the American Top Team lightweight says he is hoping to make it the first step in a run toward the UFC 155-pound title in 2010.

636 days. That's how long it will be between fights for Goran Reljic when he makes his return against C.B. Dollaway at UFC 110 on Feb. 20 at the Acer Arena in Sydney, Australia.

Xtreme Couture grappling coach Neil Melanson discussed Randy Couture's submission of Mark Coleman at UFC 109.

A day after he failed to make weight for his latest outing inside the cage, Junie Allen Browning quit in his corner after just one round.

Randy Couture continued his march toward another light heavyweight title shot with a second-round submission against fellow hall of famer Mark Coleman at UFC 109 Saturday in Las Vegas.

TOKYO -- Japanese entertainment management group J-Rock announced Monday that it will host a one-time MMA event called Astra dedicated to the retirement of J-Rock client Hidehiko Yoshida

LAS VEGAS -- At a time when many fighters switch trainers about as often as they change underwear, the long-standing relationship between former UFC welterweight champion Matt Serra and New York-based striking guru Ray Longo has become an exception to the rule.

Bellator Fighting Championships on Friday announced it had signed World Extreme Cagefighting veteran Bryan Baker to compete in its Season 2 middleweight tournament. Terms of the deal were not disclosed.

Matt Serra called his knockout of Frank Trigg at UFC 109 an "amazing experience." He discussed the bout with Sherdog.com's Mike Sloan.

LAS VEGAS -- Mark Coleman, the first heavyweight champion in the promotions history, appears to have fought his last fight in the UFC.

Chael Sonnen made some eye-raising statements in the lead-up to his middleweight title eliminator against heavily favored Nate Marquardt.

A complete list of significant new fights reported this week. Some may be repeated from previous sections:

Jose Aldo and Urijah Faber squared off in Las Vegas to announce WEC 48: Aldo vs. Faber.

LAS VEGAS -- It was never in doubt.

Two of the worlds top welterweights will toe the line against one another when Jon Fitch meets Thiago Alves in a featured match at UFC 111 St. Pierre vs. Hardy

In a bout first scheduled for UFC 17, UFC Hall of Famers Randy Couture and Mark Coleman are set to square off Saturday in the main event of UFC 109 in Las Vegas.

Couture, who weighed in at 205 pounds on Friday, is returning from a controversial decision over

Nick Diaz, Robbie Lawler and, perhaps surprisingly, Herschel Walker, put forward the most talked-about performances on the first Strikeforce card of 2010

LAS VEGAS -- Former World Extreme Cagefighting light heavyweight champion Brian Stann has turned his celebrity into an avenue through which he can bolster veterans of the United States military.

In his last three fights, Nate Marquardt has shown a killer instinct he wasnt thought to have. He finished all three bouts and he attributes those wins to a different mindset.

Mark Coleman says he plans on not being able to take down Randy Couture in their main event matchup Saturday at UFC 109.

MIAMI -- Unlike his recent victories, which have come by submission or TKO, Bellator Fighting Championships middleweight titleholder Hector Lombard defeated Joey Gorczynski by unanimous decision in a lackluster performance at G-Force Fights Bad Blood 3 at the American Airlines Arena.

LAS VEGAS -- He has twice challenged for the UFC welterweight championship, but 37-year-old Frank Trigg realizes his days inside the Octagon may be numbered.

LEMOORE, Calif. --- Cole Escovedo used his signature move to submit Jeff Bedard for the Tachi Palace Fights bantamweight championship on Thursday. Escovedo caught Bedard with a triangle choke at 2:31 into the first round.

LAS VEGAS -- Reformed street-fighter turned mixed martial artist Kevin Kimbo Slice Ferguson will meet Matt Mitrione at UFC 113 Machida vs. Shogun 2 on May 8 at the Bell Center in Montreal, UFC President Dana White confirmed on Thursday.

LAS VEGAS -- UFC President Dana White on Thursday brushed off rival promotion Strikeforce and any potential threat the San Jose, Calif.-based organization poses.

A video feed of Thursday's UFC 109 pre-fight news conference is available on Sherdog.com.

The debut of Herschel Walker and two championship bouts sold 4,927 tickets for a net gate of $301,424.60 at Strikeforce Miami, according to documents obtained by Sherdog.com from the Florida Department of Business and Regulation.

LAS VEGAS -- Outspoken middleweight contender Chael Sonnen has called the bluff of fighters who lean on time-honored clichés and claim to train six hours a day, seven days a week.

LAS VEGAS -- Randy Couture enjoys his job most when he encounters opponents with backgrounds similar to his. Mark Coleman fits the description.

A second fight for Herschel Walker could be in the cards much sooner than later.

Frank Trigg says his prefight banter with UFC 109 opponent Matt Serra was just intended to build the fight. Serra is less certain about the words they exchanged.

Just days before their main event bout at UFC 109, Randy Couture is making it clear that he plans on seeing whether Mark Coleman can keep up with him.

Kenny Florian and Takanori Gomi will meet in a headlining lightweight bout at UFC Fight Night 21 on March 31 at the Bojangles Coliseum in Charlotte, N.C., Spike TV announced on Wednesday.

Nick Diaz was the big winner at Saturdays Strikeforce Miami in more ways than one. The one-man demolition crew took out Dream champion Marius Zaromskis in the first round to secure the promotions 170-pound title to the tune of an event-high $100,000, according to figures released Wednesday by the Florida Department of Business and Regulation.

Muhammed Lawal expects to be tabbed as the next opponent for Strikeforce light heavyweight champion Gegard Mousasi, perhaps as soon as April

M-1 Global will begin its Selection event series this Friday with a worldwide tournament of 160 fighters vying for slots among M-1 Challenges 2010 roster.

Middleweight champion Hector Lombard told Sherdog.com that he expects to return to the Bellator cage this spring

Diego Sanchez said hell be facing John Hathaway in a welterweight bout at UFC 114 on May 29 in Las Vegas on his Twitter account on Tuesday.

Joey Beltran will replace Mostapha Al-Turk in a heavyweight bout against Rolles Gracie at UFC 109 this Saturday in Las Vegas, the promotion confirmed on Tuesday.

German upstart Peter Sobotta has agreed to face The Ultimate Fighter 9 winner James Wilks in welterweight bout at UFC 115 on June 12 at the GM Place in Vancouver.

Strikeforce has secured additional broadcast distribution in six international markets through its partnership with Shine International, the promotion announced on Tuesday.

Josh Koscheck was supposed to get his chance to avenge a loss to Paulo Thiago this Saturday at UFC 109 in Las Vegas, but an injury forced the American Kickboxing Academy welterweight out of the bout

Bellator Fighting Championships middleweight titleholder Hector Lombard will battle Joey Gorczynski in the marquee matchup at G-Force Fights Bad Blood 3 this Thursday at the American Airlines Arena in Miami, Fla.

The Ohio-based Shine Fights promotion on Monday announced it had reached an exclusive agreement with Braulio Estima, one of the worlds premier submission grapplers. Terms of the deal were not disclosed.

The Ultimate Fighter Season 5 winner Nate Diaz will ascend to the welterweight division and meet International Fight League veteran Rory Markham in a preliminary matchup at UFC 111 St. Pierre vs. Hardy on March 27 at the Prudential Center in Newark, N.J.

HDNet announced a multi-year deal on Monday to air Mark Burnett Presents: King of the Cage live events every month on its cable channel.

Jay Hieron thought he would be facing Nick Diaz for the Strikeforce welterweight crown when he inked his deal with the promotion last summer. He may finally get his chance

Newly minted Strikeforce welterweight champion Nick Diaz, fresh off a dominant stoppage win over a red-hot Marius Zaromskis, spoke with Sherdog.com about the bout and his immediate future

Shooto mainstay Mamoru Yamaguchi submitted the previously unbeaten Frank Baca by second-round rear-naked choke to capture the King of the Cage junior flyweight championship in the KOTC Toryumon

Coming off the first loss of his professional career, The Ultimate Fighter 8 champion Efrain Escudero looks to bounce back at UFC 114 when he faces the youngest fighter to compete in the UFC