Dana White said Lesnar had been ill for three weeks, claiming he had never been this sick in his life and that it would take him a while to recover, therefore his fight with Carwin was rescheduled for UFC 108 on January 2, 2010. Lesnar initially sought treatment in Canada, but later told reporters that he had received "Third World treatment" at a hospital in Brandon, Manitoba and that seeking better treatment in the United States saved his life. Lesnar went on to criticize Canadian health care further and stated that he shared his experience to speak "on the behalf of the doctors in the United States that don't want health care reform to happen". On November 4 it was confirmed that Lesnar had mononucleosis and that his bout with Carwin would have to wait a bit longer and the fight for Lesnar's heavyweight championship was canceled. On November 14 at the UFC 105 post-fight conference, Dana White stated, "[Lesnar]'s not well and he's not going to be getting well anytime soon" and that an interim title match might need to be set up. In addition to mononucleosis, it was revealed that he had developed a serious case of diverticulitis, an intestinal disorder, which required surgery. After further diagnosis, Lesnar underwent surgery on November 16 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. 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 revealed on ESPN's SportsCenter that he was scheduled to make a return to the UFC in the summer. A match between Frank Mir and Shane Carwin took place on March 27 at UFC 111 to determine the Interim Heavyweight Champion and Lesnar's next opponent. Shane Carwin defeated Mir via knockout in the first round, becoming the new Interim Champion. After the fight, Lesnar 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". Lesnar faced Carwin at UFC 116 on July 3 to unify the heavyweight titles. Early in the first round, Carwin knocked Lesnar down with heavy punches, and continued landing ground and pound throughout the round, opening a cut on