Here’s a video I snavelled from youtube of a couple of Brock Lesnar’s training camps in the last six months or so.
On October 26, 2009, it was announced that Lesnar had pulled out of his match up with Shane Carwin that was set for the UFC 106 card. Dana White said that Brock had been ill for three weeks, claiming he had never been so sick in his life and that it would take him a while to recover so his fight with Carwin was rescheduled for UFC 108 in early 2010.
Lesnar initially sought treatment in Canada, but later told reporters that he had received “Third World treatment” from malfunctioning equipment at a hospital in Manitoba, and that seeking better medical treatment in the United States had saved his life.
On November 4, it was confirmed that Lesnar was suffering from mononucleosis and that his bout with Carwin would have to wait a even longer, so the fight scheduled for UFC 108 was cancelled.
On November 14 at the UFC 105 post-fight conference, Dana stated, “He’s not well and he’s not going to be getting well anytime soon.” and so an interim title match might need to be set up.
In addition to mononucleosis, it was revealed that Lesnar was suffering from a serious case of diverticulitis, an intestinal disorder, which would require surgery.
After further diagnosis, on November 16 Lesnar underwent surgery to close a perforation in his intestine that had been leaking fecal matter into his abdomen, causing pain, abscesses, and overtaxing his immune system to the point that he contracted mononucleosis (we here in Australia call it ‘glandular fever’).
From the level of damage to Lesnar’s system, the surgeon estimated that the intestinal condition had been ongoing for around a year.
In January 2010, Lesnar announced on ESPN SportsCenter that he is scheduled to make a return to UFC in the summer of 2010. A match between Frank Mir and Shane Carwin took place on March 27 at UFC 111 to determine the UFC Interim Heavyweight Champion, and Brock’s next opponent.
Shane Carwin defeated Frank Mir by KO in the first round, becoming the new Interim Champion. After the fight, Brock came into the ring and stated “It was a good fight, but he’s wearing a belt that’s a make believe belt, I’ve got the real championship belt.”
Brock Lesnar trains twice a day four days per week. The morning workout focuses on fighting skills. The evening workout emphasizes running and weights, and he alternates a six-week power cycle with a four-week conditioning cycle.
*Info sourced from Wikipedia.com and ifitandhealthy.com…and youtube of course 
