UFC

Tito Ortiz is coming out swinging against the guy that beat him into retirement -- telling TMZ, Forrest Griffin's use of testosterone before the fight sets a terrible example for kids ... and UFC fans in general.

In case you didn't know, Forrest underwent a controversial treatment before his July 7th bout against Tito Ortiz -- the final fight of Tito's 15-year career with UFC.

The treatment's called TRT (Testosterone Replacement Therapy) and it's commonly been used by older MMA fighters, like Dan Henderson and Chael Sonnen. The treatment's said to boost testosterone levels in older fighters to that of a fighter in his 20s.

Proponents say the treatment levels the playing field among young and old fighters alike -- but Tito disagrees ... ripping Forrest for using TRT, saying, "I don't think it was a good thing to show our kids."

Tito added, "Setting a good example is doing the right thing. And that's being drug-free."

Now the big question, will Tito seek a rematch??? Watch the video to find out.

Ladies and gentlemen ... UFC fighter Roy Nelson's mangled face -- after taking a nasty knee to the forehead Saturday night at UFC 143, courtesy of Muay Thai punisher Fabricio Werdum.

Nelson -- who lost the fight by unanimous decision -- posted the picture on his Twitter, writing, "Here is the cut from me head butting werdum's knee in the 1st. My face is fine, forehead is a little sore."

According to Nelson, the gashes on his face -- one big, one small -- required between 16-20 stitches.

The NFL ... NBA ... and the UFC all collided in L.A. today ... when 4 major sports stars were involved in 4 separate paternity hearings ... at the same exact courthouse!!!

Terrell Owens ... along with MMA legend Chuck Liddell and Jacksonville Jaguars star Marcedes Lewis were all hanging out in the hallway on the 8th floor of the L.A. County Superior Courthouse ... each waiting to deal with their individual baby mama drama.

Washington Wizards star Roger Mason also has a paternity hearing today ... but so far, he's a no-show.

As for the other guys ...

-- T.O. faced off with 2 baby mamas ... in an effort to lower his monthly child support obligation.

-- Liddell was there to handle money issues with his baby mama as well.

-- Marcedes has a hearing scheduled for this afternoon ... he's currently having a conversation with his baby mama in the cafeteria.

L.A. County Superior Courthouse -- the worldwide leader in sports ... hearings.
Da na na ... na na na.

After court, we asked Marcedes if he joked around with Chuck and T.O. while inside -- but he said it was "a little more serious than that."

Jones was doing what has become his ritual before a fight ... he was meditating at a park in Patterson, NJ when he heard a woman scream, "I've been robbed!"

Jones began chasing the man for a good distance. When the fighter caught up with the alleged robber, he knocked the guy's legs out from under him, then placed him in a figure-four leg lock until Paterson cops arrived.

Jones' fight tonight -- UFC 128 -- is in Newark.

Jones tells TMZ, "It was a great pre-fight warm-up for me!"

UPDATE: Jones tweeted about the incident, and even posted a photo (see below) his driver took of the aftermath. He wrote, "I caught him....Coach Jackson finished him ... It feels so good to help others. It gives me power and energy."

27-year-old Huerta -- who was once featured on the cover of Sports Illustrated -- was in front of a bar in Austin around 2 AM on Saturday morning ... when some other people began fighting. Roger was near the scuffle ... when he saw one of the men involved punch a female who was standing near the ruckus.

Once Huerta sees the woman collapse to the ground -- he instantly tries to confront the attacker saying, "You just punched a f**kin' girl."

Moments later, Huerta takes off his shirt ... slams his hat to the ground ... and rushes after the man.

Chaos ensues and people scramble after the fighters, blocking the camera -- but seconds later ... a shirtless Huerta can be seen finishing his attack on the other man ... who is sprawled out on the street.

People rush in to aid the bloody man on the ground -- who eventually gets off the pavement -- as Huerta walks away from the battle ground.

Austin PD tells TMZ that officers were called to the scene -- but so far, no arrests have been made.

We asked the hardcore heavyweight why he would get back in the ring after a mystery illness brought him so close to death a few months ago. His response -- it's the other guy who's risking his life.

Lesnar also offered his thoughts on a new trend making a splash in the world of combat -- fighters drinking their own urine to gain some sort of an edge.

Sources close to Alves tell TMZ Pitbull had an angiogram yesterday morning -- a post-operation procedure that took several hours -- but the results were good.

We're told Alves' doctor is currently sending a letter to the New Jersey Boxing Commission declaring him physically fit to fight. Alves has told us in the past that he wants to get back in the ring ASAP.

Alves was leaving OTM Fight Shop in Redondo Beach yesterday, where he told us he's not only doing well, he's already training again -- just weeks after a surgical procedure to prevent bleeding in his brain.

Operating room spies tell TMZ Thiago Alves just underwent an 8 hour operation to separate an artery from a vein in his brain.

Dana White tells TMZ the operation -- in a New York City hospital -- was a complete success and Pitbull's first words ... "When can I start training again?"

Dana's answer ... a couple of weeks.

We're told Pitbull will be in ICU for the next two days.

TMZ spoke with Alves moments ago, who told us, "I went and saw a specialist this morning who told me I need to have the minor procedure." We're told the procedure will be done in New York.

Alves says he expects to be sidelined from fighting for three weeks -- but expects to be back in the gym in two. We asked Alves if he thought a blow to the head from his recent fight with Georges St-Pierre may have caused his condition and he told us, "I don't think so."

TMZ also spoke with UFC president Dana White who told us, "He'll be back ... it's all good."

Pitbull -- who took this photo moments ago -- is expected to hold a news conference sometime later today at Sazon restaurant in NY.