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, 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.

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.

Heavyweight contenders Shane Carwin and Cain Velasquez are now expected to square off at UFC 104 on October 24 in Los Angeles. “Looks like I’ll be fighting October 24 in LA,” wrote Carwin on Twitter. “Excited to know.”

The pair of up-and-coming heavyweights were originally rumored to co-headline UFC 103 on September 26 in Dallas alongside Mike Swick vs. Matt Hughes, but neither bout materialized for the card with Carwin-Velasquez now pushed back to UFC 104 and Swick booked to fight Martin Kampmann at the September event.

Shane Carwin vs. Cain Velasquez and Matt Hughes vs. Mike Swick could co-headline UFC 103 on September 26 in Dallas if current rumors are accurate.

A potential bout between heavyweight contenders Carwin and Velasquez began to be discussed after Velasquez’s UFC 99 victory over Cheick Kongo earlier this month, which cemented his status as a contender for the heavyweight title much like Carwin did with a UFC 96 win over Gabriel Gonzaga. Both Velasquez (6-0) and Carwin (11-0) are undefeated and in line for a title shot, though each needs one more victory over top competition before fighting for the belt.

All eleven fighters drug tested by the Ohio Athletic Commission following their bouts at UFC 96 on March 7th in Columbus, Ohio have tested negative.