UFC heavyweight champion Brock Lesnar is seriously ill with doubts over whether the 32-year-old will return to the sport.

Brock Lesnar has been confirmed as suffering from mononucleosis and his January 2, 2010 fight with Shane Carwin is off.

White informed UFC president Dana White on Wednesday of the diagnosis that he received earlier this week.

The UFC Heavyweight champion has been instructed not to train for a month, ruling out the chance of fighting as soon as January.

White told Kevin Iole of Yahoo! Sports: “We’re still trying to figure it out and I’m really not sure where any of it stands right now.”

The UFC Heavyweight Championship fight between Brock Lesnar and Shane Carwin scheduled for November 21 has been postponed – full details.

The UFC has skyrocketed in popularity with the rise of compelling fighters like Brock Lesnar and Georges St. Pierre among others, but it still seems to lack a certain charm at times. Many hardcore MMA fans have missed the PRIDE Fighting Championships from Japan, a league which spawned top UFC fighters like Quinton “Rampage” Jackson and Anderson Silva, among others…

Dana White is perhaps one of the most well-known figures in the biggest party town in America, Las Vegas, so it’s safe to say that has a ton of friends. But it also seems like every time the UFC President opens his mouth, he manages to make a few new enemies as well.

Hard to believe, but WWE’s Hell in a Cell gimmick has been around now for 12 years.

Throughout this period, it’s seen its ups and downs, but this modern-day Cage Match has largely been an enormous success. The popularity of it in terms of contemporary gimmicks is probably only equaled by the TLC match.

It’s also succeeded the Steel Cage match as the ultimate means to ending a blood-feud (though in today’s climate, where no blood is permitted, that definition is somewhat lost), in the same manner that TLC has eclipsed the regular Ladder Match format…

Watch Brock Lesnar in training ahead of his UFC 106 main event clash with Shane Carwin on November 21.

Full details on UFC 106 as the UFC officially announce Brock Lesnar vs. Shane Carwin along with the return of Tito Ortiz who will face Mark Coleman.

After narrowly losing to Randy Couture at UFC 102 last weekend, does Antonio Rodrigo Nogueira have what it takes to beat Brock Lesnar?

Anderson Silva wants to move up to the UFC’s heavyweight division, but could ‘The Spider’ deal with Frank Mir?

Randy “The Natural” Couture is contracted for six more fights in the UFC, but that could very well change given his loss to Antonio Rodrigo Nogueira by decision on Saturday night. Nogueira fought a great fight, standing toe-to-toe with the living legend and countering every stiffening blow with a counter-punch of his own.

Shane Carwin was supposed to earn his fight against Brock Lesnar by attempting to topple the mighty Cain Velasquez at UFC 104. Instead, Carwin was handed the keys to the Number One contendership and is being slipped in to fight Lesnar at UFC 106 in November.

Ultimate Fighting Championship announced on Thursday that Brock Lesnar will be next defending the UFC Heavyweight Championship against undefeated Shane Carwin at UFC 106 in Las Vegas on November 21 in the Mandalay Bay Events Center.

Carwin (11-0) was originally scheduled to face Cain Velasquez at UFC 104 on October 24 in Los Angeles with the winner getting the next shot at Lesnar (4-1), but the change was done in order to kick off a series of November to February schedule of big shows with a Lesnar fight.

“Brock is ready to go now and wants to fight,”…