UFC heavyweight champion Brock Lesnar underwent minor surgery yesterday to treat a bacterial infection in his intestinal tract and has been released from the hospital.

With Lesnar out indefinitely, White told the LA Times on Tuesday that the UFC will schedule an interim heavyweight title fight, with Carwin and fellow contender Cain Velasquez expected to square off early next year.

UFC heavyweight champion Brock Lesnar is suffering from a bacterial infection in his intestinal tract, according to the Associated Press. The previously-undiagnosed illness will keep Lesnar out of action indefinitely, though he could be released from the hospital soon, UFC President Dana White told the AP.

UFC heavyweight champion Brock Lesnar, sidelined indefinitely from an undisclosed illness, is likely to require “major surgery” and may never fight again, UFC President Dana White today told TMZ.com.

According to White, Lesnar, who is also suffering from mono, has been hospitalized since collapsing during a trip to Canada last week. He will reportedly be transferred to the Mayo Clinic, where he’d undergo surgery for a “intestinal disorder”.

UFC heavyweight champion Brock Lesnar will be sidelined indefinitely as he continues to suffer from illnesses that recently forced him to postpone his scheduled title defense against Shane Carwin, while Antonio Rodrigo Nogueira has been forced to withdraw from his matchup with fellow heavyweight contender Cain Velasquez which was to headline UFC 108.

Heavyweight challenger Shane Carwin confirmed on his official website today that UFC champion Brock Lesnar will be unable to defend his title at UFC 108 on January 2 in Las Vegas.

“My manager Jason Genet just told me that UFC 108 is not happening,” wrote Carwin. “Brock has Mono and what the UFC has told me is that I have earned the title shoot but I have to wait for the title holder.”

UFC heavyweight champion Brock Lesnar will be unable to fight Shane Carwin in the main event of UFC 108 on January 2, according to Heavy.com, likely leaving the traditional blockbuster event without a championship headliner.

Illness prevented Lesnar from fighting at UFC 106 later this month and the fight was targeted for UFC 108, but with Lesnar still sidelined the bout will again be delayed, likely to UFC 109 on February 6.

UFC heavyweight champion Brock Lesnar, who last week withdrew from his scheduled title defense against Shane Carwin at UFC 106 due to an extended illness, remains sick and unable to train, according to an update from Yahoo Sports’ Kevin Iole.

If Lesnar is unable to resume training soon, the Lesnar-Carwin matchup could be pushed back until February and UFC 108 could be left without a championship main event.

Brock Lesnar’s training partner at Minnesota Martial Arts Academy and fellow UFC heavyweight Chris Tuchscherer talked to the Las Vegas Sun about Lesnar’s illness and his decision to withdraw from his November title defense against Shane Carwin, which has since been rescheduled for UFC 108 on January 2:

He actually practiced (Sunday) and thought he might be feeling alright. He said, ‘Wow, I think I’m doing OK today,’ (Monday) he got here and it was the same old stuff — fatiguing right away, not being all there.”

UFC heavyweight champion Brock Lesnar has been forced to withdraw from his scheduled title defense against Shane Carwin at UFC 106 on November 21 in Las Vegas due to an illness that has prevented him from training for nearly a month, UFC President Dana White confirmed to Yahoo! Sports on Monday.

According to a post by Carwin on Twitter, the fight has been rescheduled for UFC 108 on January 2 in Las Vegas, leaving Tito Ortiz vs. Forrest Griffin to headline UFC 106.

“He’s a tough guy. He’s undefeated, but some of the guys he’s beaten aren’t worthy of having on your record. He hasn’t fought anybody. He’s fought (Gabriel) Gonzaga, so I really think he’s 1-0. He’s a tough guy and a wrestler. But he’s a Division II national champion — enough said.”
UFC heavyweight champ Brock Lesnar [...]

Antonio Rodrigo Nogueira, back on track after his August victory over Randy Couture, will challenge the winner of the November 21 Brock Lesnar-Shane Carwin fight for the heavyweight title, according to Inside Fights, which confirmed a Wrestling Observer report.

On Wednesday, the UFC made three more bouts for the UFC 106 official. The promotion officially announced Phil Baroni vs. Amir Sadollah, Marcus Davis vs. Ben Saunders and Jason Dent vs. George Sotiropoulos for the preliminary card of the November 21 event to take place at the Mandalay Bay Events Center in Las Vegas, Nevada.

Headlining UFC 106 will be a heavyweight title bout between two behemoths, champion Brock Lesnar, and challenger Shane Carwin. Also featured on the card is the return of Tito Ortiz who will be facing off against Mark Coleman.

The UFC today announced its long-rumored UFC 106 event, which will take place on November 21 at the Mandalay Bay Events Center in Las Vegas. Confirmed for the card was a headlining matchup between heavyweight champ Brock Lesnar and challenger Shane Carwin, as well as Tito Ortiz’s return to the Octagon against hall of famer Mark Coleman.

UFC heavyweight champion Brock Lesnar will defend his title against Shane Carwin in the main event of UFC 106 on November 21 in Las Vegas, according to MMA Madness and Fighters Only.

Carwin had been scheduled to fight fellow heavyweight contender Cain Velasquez at UFC 104 on October 24 in Las Angeles, but that bout has apparently been scrapped in favor of Lesnar-Carwin, with Velasquez then set to fight the winner, Fighters Only reports.

13 fighters from the 11-bout UFC 100 card, which took place last Saturday and the Mandalay Events Center in Las Vegas, were tested by the Nevada State Athletic Commission for steroids and drugs of abuse and all of the tests were negative according to NSAC executive director Keith Kizer, who confirmed the results to MMAFrenzy.com on Friday.

The UFC 100 fighters which were tested were Frank Mir, Brock Lesnar, Georges St-Pierre, Thiago Alves, Shannon Gugerty, Jon Fitch, Dan Henderson, Yoshihiro Akiyama, Mark Coleman, Tom Lawlor, Jon Jones, Dong Hyun Kim, and Dan Miller.