UFC Champion Brock Lesnar was recently reported to be ill. The mystery over the cause of his illness lasted for days. There were even speculations that it was due to his steroids use. However, today, this mystery illness now has a name.

According to UFC president Dana White, Lesnar was suffering from mononucleosis. Apart from that, he was also suffering from an intestinal infection caused by a certain bacteria. As to what caused this infection, it remains unknown.

White said during the post UFC 105 press conference last Saturday that Lesnar would be out of UFC indefinitely.

White added that he is flying to see Lesnar and he was encouraging the UFC champion to visit Mayo Clinic in Minnesota to seek further treatment, despite the current diagnosis.

Lesnar was supposed to meet challenger Shane Carwin during the UFC 106 event last Saturday. However, because of Lesnar’s health issues, the fight, which was scheduled on January 2, was forcibly cancelled by UFC.

During the press conference last Saturday, White refuses to make a statement as to whether Lesnar’s condition could potentially end his career. White said it still have to depend on the severity of his illness.

From MMA Junkie:

UFC president Dana White today told the Associated Press that Lesnar is currently suffering from a bacterial infection in his intestinal track in addition to the mononucleosis that has recently plagued him.