Brock Lesnar's longtime friend and Jiu-Jitsu coach tells TMZ.com that the UFC Heavyweight champ WILL return to the Octagon -- within 6 months.

Rodrigo "Comprido" Medeiros, a 7-time World Jiu-Jitsu champion, told TMZ that Lesnar "is getting better and that is the most important thing ... He will be fine and be fighting again within 6 months."

Medeiros added, "I can just say that the heavyweights can stop laughing and get ready to start crying because the champion will be back soon."

TNA president Dixie Carter issued the following 'tweet' on Brock: On behalf of everyone at TNA, our thoughts and prayers are with Brock Lesner and we wish him a speedy and full recovery!

In an interview with Yahoo, Dana White says that Lesnar had a hole in his intestine and that waste was leaking into his stomach.

He had a hole in his intestine," White said. "The (stuff) was leaking into his stomach. That's what was causing him so much pain. That and he had abscesses.

"The doctor told him he hasn't been right for a year. His immune system has been trying to fight this thing and that's why he was susceptible to getting sick."

Brock is back home in Alexandria, MN to recover from his surgery after spending 11 days in a hospital. It is not ruled out that he has to go under the knife once more depending on his healing process.

Brock's chiropractor said: "He [Brock] wants people to know that he is getting better and contrary to some rumors that he had died, he is on the mend."

KSAX Eyewitness News will have a story on Lesnar's condition, including an interview with Brock's chiropractor Dr. Novotny Tuesday night at 10. You can also watch it on KSAX.com