lol, looks like I was spot on in my above post.
http://latimesblogs.latimes.com/spor...l-surgery.html
UFC's Brock Lesnar undergoes intestinal surgery
November 17, 2009 | 3

6 pm
Brock Lesnar, the heavyweight champion of the Ultimate Fighting Championship, underwent surgery Monday for a bacterial infection in his intestinal tract, and UFC President Dana White told The Times that doctors are "waiting to see if he needs more."
White declined to reveal why the surgery was required, describing it as a "minor" procedure, but a high-placed source close to the fighter confirmed the intestinal surgery.
Lesnar, who memorably won at UFC 100 in July via a second-round TKO of Frank Mir, originally pulled out of his scheduled Saturday night fight against Shane Carwin complaining of sickness. He then told White he'd be unable to fight in a rescheduled Jan. 2 card because he had contracted mononucleosis. White told Yahoo! Sports on Saturday that Lesnar was very sick and would be out for an extended period.
White told The Times on Tuesday that he will schedule an interim heavyweight title fight during Lesnar's absence and that he's "working on it right now."
-- Lance Pugmire