An injury has forced UFC featherweight champion Jose Aldo out of a planned late-summer bout with Chad Mendes writes HeavyMMA.com.

UFC featherweight champion Jose Aldo has suffered an injury and has been forced to withdraw from a planned late-summer bout with Chad Mendes.

Multiple sources close to the fight confirmed the news with HeavyMMA.com on Monday afternoon.

Aldo’s injury is believed to be a minor setback and the featherweight champion will be able to fight by mid-September. Mendes plans on taking a fight instead of waiting for the September title shot.

Aldo last appeared at UFC 129, winning a decision victory over the gutsy Mark Hominick. The undefeated Mendes earned his title shot with a win over Michihiro Omigawa at UFC 126.

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According to HeavyMMA.com, Brock Lesnar has pulled out of his UFC 131 bout with Junior dos Santos due to a relapse of diverticulitis.

A relapse of diverticulitis has forced former UFC heavyweight champion Brock Lesnar to pull out of his scheduled UFC 131 fight with Junior dos Santos.

UFC President Dana White confirmed the news today.

Lesnar was scheduled to face fellow Ultimate Fighter 13 coach Dos Santos in the main event of UFC 131 in Vancouver. The winner would receive a title shot. Shane Carwin will face dos Santos instead.

Lesnar indicated on the conference call that his career isn’t over and he is not retiring, but that he has to figure out a way to beat the illness so that he can train to the best of his capabilities. “I’ve just got to find the right solution to fix this problem,” Lesnar said.

More on this story as it develops.

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Legendary welterweight Matt Hughes is at the center of a police investigation stemming from an April bar brawl, this according to HeavyMMA.com.

UFC Hall of Famer Matt Hughes is at the center of a police investigation filed in Illinois.

TMZ reported this morning that Hughes was involved in an altercation inside of a bar on April 23 in Taylor Springs, Il. The report says that Hughes became involved in an argument with another bar patron and pushed a man into a woman, breaking her nose in the process.

Hughes is expected to face Diego Sanchez at UFC 135.

HeavyMMA.com will have more on the story as it develops.

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According to HeavyMMA.com, all 24 fighters who competed at UFC 129 last weekend have received medical suspensions, including welterweight champion Georges St. Pierre.

Out of the 24 suspensions given out, UFC welterweight champion Georges St. Pierre and six others earned the lengthiest with 60 day suspensions. The other six include Mark Hominick, who fought featherweight champion Jose Aldo in the evening’s co-main event, Randy Couture, Jason Brilz, Kyle Watson, Charlie Valencia, and Sean Pierson. Hominick and St. Pierre were the only ones out of the seven to avoid being knocked out.

From the evening’s preliminary card, Nate Diaz was given a suspension of 45 days following his loss to Rory MacDonald, while Jake Ellenberger will be out the same amount of time following his knockout victory over Sean Pierson.

UFC 129 took place at the Rogers Centre in Toronto and featured St. Pierre’s welterweight title defense against Jake Shields. In the co-main event of the evening, featherweight title-holder Aldo managed to outpoint Hominick on the judges’ scorecards.

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UFC light heavyweight champion Jon Jones has been forced out of his UFC 133 bout against Rashad Evans, and Phil Davis has stepped in for the August bout writes Nate Lawson of HeavyMMA.com.

Light heavyweight champion Jon Jones will not meet Rashad Evans later this year.

Neil Davidson of the Canadian Press broke the news today that the champion was forced out of the contest and that the fast-rising Phil Davis will step in against Evans at UFC 133 this August.

According to MMAjunkie.com, Jones has been sidelined due to a torn right hand ligament, and the recovery will apparently be a lengthy one. A timetable has not been set, though.

Jones defeated former champion Mauricio “Shogun” Rua at UFC 128 last month to earn the light heavyweight strap. Immediately following the fight, former champion Evans entered the cage, and the pair agreed to fight for the championship later this year.

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HeavyMMA.com writes that Jason “Mayhem” Miller will face Aaron Simpson at UFC 132 in July.

Returning middleweight Jason “Mayhem” Miller has been under contract to the UFC for less than two days, and he already has a fight scheduled. That’s a far cry from his Strikeforce days, where Miller would go months without getting a single fight booked.

Miller will face tough wrestler Aaron Simpson at UFC 132 in July. HeavyMMA.com confirmed the news with sources close to the promotion on Saturday morning. The Miller/Simpson bout is expected to be a part of the night’s pay per view telecast.

Miller hasn’t fought loss an August victory over Kazushi Sakuraba in DREAM last year, and hasn’t competed in North America in just over one year, ever since his involvement in the famed Nashville brawl with members of the Cesar Gracie camp. Miller inked his new UFC contract late this week.

Simpson earned a unanimous decision over Mario Miranda in March, getting back on track after consecutive losses to Chris Leben and Mark Munoz.

UFC 132 is headlined by a UFC bantamweight title bout between Dominick Cruz and Urijah Faber.

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HeavyMMA.com writes that Vitor Belfort will return to the Octagon at UFC 133 when he faces Yoshihiro Akiyama.

Vitor Belfort will return to the Octagon for the first time since a stunning knockout loss to Anderson Silva in January when he faces Yoshihiro Akiyama at UFC 133.

The event is scheduled for Aug. 6 in Philadelphia.

Silva used a front kick to the jaw to finish Belfort in their middleweight title fight in January. It was Belfort’s first fight in the UFC middleweight division after dismantling Rich Franklin in a catchweight bout in his return to the promotion.

Akiyama will look to put an end to a two-fight losing streak. He was scheduled to face Chael Sonnen in March, but Sonnen’s suspension by the UFC put an end to the bout. Nate Marquardt replaced Sonnen, but Akiyama was forced to pull out of that fight after the tragic earthquakes in Japan left him unable to travel.

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A light heavyweight rematch between Mauricio Rua and Forrest Griffin is set for Brazil this August at UFC 134 according to HeavyMMA.com.

A light heavyweight tilt rematch between Forrest Griffin and Mauricio “Shogun” Rua is set for “UFC Rio.”

UFC president Dana White confirmed the news to MMAFighting.com earlier today.

The two first met back at UFC 76, the event where Rua made his debut with the promotion. The former PRIDE superstar failed to capitalize, however, as he was submitted by Griffin in what was one of the more improbable victories in the history of the UFC.

Since then, Griffin has earned and lost the 205 lb. title, while Rua has done the same. The Brazilian is coming off a technical knockout loss to Jon Jones which lost him the title, while Griffin is still on the road back with consecutive wins over Tito Ortiz and Rich Franklin.

“UFC Rio,” also known as UFC 134, is set for Rio de Janeiro, Brazil on August 27 and features a middleweight title fight between champion Anderson Silva and top contender Yushin Okami.

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Yushin Okami, the last man to beat Anderson Silva, will finally get his shot at the title when he faces Silva again at UFC Rio according to HeavyMMA.com.

Yushin Okami was the last man to beat Anderson Silva. At “UFC Rio,” he’ll finally get his long-awaited crack at the middleweight title.

UFC President Dana White confirmed the bout with USA Today on Wednesday afternoon. The news puts an end to the idea that welterweight champion Georges St. Pierre will move up to challenge for Silva’s title.

Okami defeated Nate Marquardt in November to earn his shot at the middleweight title. He defeated Silva via disqualification back in 2006 when Silva used an illegal upkick at a Rumble on the Rock show. Silva is undefeated since that lone loss, while Okami has gone 12-3 in the same span.

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Spike TV officially announced the debut of “UFC Primetime: St. Pierre vs. Shields,” which begins this Wednesday on the cable network according to HeavyMMA.com.

Spike TV has announced that “UFC Primetime: St. Pierre vs. Shields” will debut this Wednesday night at midnight ET/PT.

The show – which will follow St. Pierre and Shields as they prepare for their UFC 129 bout in Toronto on April 30 – began production last weekend in San Diego. Primetime crews followed Shields around the city as he prepared to corner teammate Gilbert Melendez while attempting to find time to do his own training as well.

The full press release for the show can be found below:

New York, NY, April 11, 2011 – In anticipation of their world welterweight title clash at UFC® 129: ST-PIERRE vs. SHIELDS, UFC® champion Georges St-Pierre and challenger Jake Shields will be featured on UFC Primetime®, a weekly, three part series premiering Wednesday, April 13 at Midnight ET/PT on Spike TV.

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