MMA

UFC knockout artist Justin Gaethje says his violent beatdown of James Vick this weekend felt "amazing" for him -- but for the other guy?

"It was the most terrifying night of that man's life."

Yeah, he ain't lyin'.

Gaethje joined the guys on the "TMZ Sports" TV show (airs weeknights on FS1) -- and said it was actually a "scary moment" for Vick ... 'cause getting KO'd is no joke.

"I've been there man. It's scary actually. His brain ... it's like a reset button on your forehead. It's like someone presses it every 30 seconds."

Gaethje was the #7 ranked lightweight fighter in the UFC going into the fight. Vick was ranked #10. The fight ended 90 seconds into the first round when Justin threw a crushing overhand right.

Gaethje says he actually felt bad for Vick -- a little bit -- but in the moment he was focusing on his accomplishment and "it feels f**king amazing."

Despite all the trash talk before the fight, Justin says there's no hard feelings anymore -- because it's way easier to squash beef after you almost knock your opponent's head off.

"It's a painful way to go out."

Floyd Mayweather has a warning for Khabib Nurmagomedov -- Conor McGregor is coming for your head!!

One year after Floyd and Conor faced off in the boxing ring, TBE says he learned firsthand McGregor is a "warrior" who's not afraid of anything ... and he's passing on a warning to his UFC 229 opponent.

"Conor's not gonna back down and he's not a scared fighter at all, win, lose or draw," Mayweather said at the Hard Rock Hotel and Casino in Atlantic City ... "Conor gonna come to fight."

Despite their rivalry, Floyd says he actually wants to HELP Conor this time around ... saying he'd love for CM to train at his home gym in Vegas.

"I know that UFC got a training facility but we'd like for him to work out at the Mayweather Boxing Club."

So, who's Floyd picking to win the fight?

"I don't really have a prediction because I've never seen the guy fight that's facing Conor McGregor -- from what I know he's a hell of a guy that's on the ground -- hell of a grappler -- and he can wrestle."

"But, the fans want to see you stand up and fight. That's what the fans like to see. But, Conor McGregor, he's a tough competitor, like I said before Conor McGregor's not gonna back down from anyone, he's not scared, he's a warrior."

UFC star Junior Dos Santos -- a former heavyweight champ -- claims he's been FALSELY identified as the violent maniac who knocked out several people in a nightclub rampage ... and he's pissed.

The video is insane -- showing a muscular dude dancing in a club on August 19 before another patron accidentally bumps into him. That's when it all goes to hell.

The man in the video explodes -- throwing haymakers at EVERYONE and sleeping dudes left and right. One of the men was knocked out cold and looked to be seriously injured.

The maniac continues brutalizing everyone in his path while onlookers try -- in vain -- to control him.

The security footage was posted online and identifies Junior by his nickname, "Cigano."

But, we spoke with Junior's attorney who is adamant the assailant is NOT her client -- claiming he was in Turks and Caicos with his family at the time and didn't set foot in a nightclub that evening.

We're told Junior's team has already reported the video to YouTube in the hopes of removing Junior's name from the title and description, claiming it's already hurting his reputation.

Nate Diaz says Bruce Buffer is OUT OF HIS MIND if he thinks he'll ever "bow" to Dana White and the UFC ... saying, "I bow down to no one ever!"

Diaz is reacting to comments Buffer made the other day when Bruce told TMZ Sports ... Nate should stop the complaining about the UFC since he's made MILLIONS fighting in the Octagon.

And instead of being bitter, Bruce said Nate should be "thanking the UFC and bowing to Dana White every time you see him."

We should note that Bruce explained he's a HUGE fan of Nate -- and wants to see Diaz have even more success.

But, Nate didn't take the comments well and fired back at Buffer -- saying, "Bruce Buffer wtf get off the Ufc nuts."

He continued, "[You're] bowing down right now tellling me to bow down? f*ck that u keep bowing down."

"I Bow down to no one ever for alll the money n the world."

Diaz added, "With all do respect @brucebuffer."

And get this ... Buffer has already responded.

"With all respect Nate that is not what I meant by saying the word 'bow,' I meant it as a sign of respect as in when greeting someone, not a sign of submission as I’d never expect you to do that for anyone."

Bruce is one of the nicest guys in the biz -- we're guessing the two will find a way to squash the beef.

As for Nate, he's upset with the UFC -- claiming Dana White and company hasn't promoted him the way he thinks he should be promoted.

White, on the other hand, has said he's offered Diaz several fights over the years but Nate has turned them all down for no good reason.

Diaz accepted a fight against Dustin Poirier at UFC 230 in November -- but he's already threatened to pull out, claiming he's still pissed at the UFC.

The most famous Octagon announcer in MMA history is sick and tired of Nate Diaz's antics, telling the Stockton superstar to stop complaining and start fighting already.

We got Bruce Buffer out in L.A. and he didn't mince words ... saying Nate's public feud with Dana White and the UFC is ridiculous ... considering how much money he's made.

Diaz -- who's scheduled to fight Dustin Poirier at UFC 230 in November -- recently told TMZ Sports he ain't interested in fighting ... and said he felt he'd been "under promoted" by the UFC.

So, when we saw the Buffer out in L.A. earlier this week ... we asked him about Diaz's beef with the UFC.

"Nate, I heard you made 7 or more million dollars on your last fight. I don't want to hear complaining about being under promoted by the UFC."

"You should be thanking the UFC and bowing to Dana White every time you see him."

If Cris Cyborg beats up Amanda Nunes ... there's a bad ass 2-time Olympic gold medalist who wants a piece of her ... and she ain't after a participation trophy.

Kayla Harrison -- who won gold in judo in London (2012) and Rio (2016) -- and is 2 and 0 in MMA ... told TMZ Sports she has her sights set on the most feared female fighter on the planet ... Cyborg.

"I want to be the best, and right now Cris Cyborg is considered the best probably pound for pound female ever."

Now, Kayla ain't saying she's ready for Cris -- who has 20 wins and only 1 loss -- just yet ... but she does have her eye set on the legendary champ ... and is determined to step in the cage with Cyborg.

Insane moment for ex-UFC fighter Dean Lister ... who pulled a firearm on a man who was robbing his house -- and the whole thing was captured on video.

42-year-old Lister -- who was 13-7 as an MMA fighter -- says he arrived to his San Diego home around 8 PM on Saturday when he saw a tatted up bald dude inside of his kitchen.

The man was super sketchy and told Lister he thought the home was a church -- but when Lister continued to press, the man picked up a hammer in a very threatening manner.

"Off camera, I drew a sidearm and he stopped advancing toward me," Lister said.

"I LET him escape with his life through a window. Cops said I was legally good if I killed him."

Lister says the man stole a bunch of cash out of the home and he published the video publicly in the hopes someone can identify the INTRUDER.

"Police are on it but if anyone knows who he is please help me,,, thank you very much."

With great power comes great responsibility -- and for Ronda Rousey that power is being the new WWE Women's Raw champion!

Ronda was getting on a plane after dominating at both SummerSlam and Raw this week -- and, you can tell, she's ready for a nap.

So, when Ronda was asked how she felt -- she told Adam Glyn, "Feels like a huge responsibility and it also feels like Tuesday."

Her point? She's through the weekend grind and now she needs to recharge her batteries for a possible appearance on next week's Raw in Toronto.

It's been a wild couple of days for Rousey -- who beat Alexa Bliss for the belt at SummerSlam on Sunday before putting her boss, Stephanie McMahon, in an armbar during Raw on Monday.

How did it feel to beat up Steph for the 3rd time? Ronda loved it.

"Third time is the best I think," Ronda says. "It's getting better every time. I think we should do it more often."

Ronda and Vince's daughter have had some serious beef since the ex-UFC star joined the WWE ... and things continued to escalate Monday night in New York.

Stephanie took the mic in the ring ... and tried to take credit for Ronda winning the Raw Women’s Championship belt at SummerSlam over the weekend.

When Ronda wasn't ready to hear any of that ... an attack ensued.

If that looked familiar ... it's 'cause it was -- Ronda's done this TWO OTHER TIMES to Steph's arm over the years ... and tells us she's loving it every single time!!

There's more ... Ronda and her husband, Travis Browne, have hinted they could eventually team up in the WWE -- but, Tuesday morning, he said it doesn't look to be "in the cards" at the moment.

As for Ronda ... no date has been set for her first title defense. There are rumblings she could take on Nikki Bella at WWE Evolution in October -- which would be HUGE.

T.J. Dillashaw is doubling down on his threats to beat Gervonta Davis' ass in the Octagon ... telling TMZ Sports he REALLY wants to show the boxer "what real fighting is all about!!"

T.J. and Gervonta got in an epic Twitter war last week -- trading all kinds of insults -- and actually challenged each other to a fight.

When the UFC superstar dropped by the TMZ newsroom this week ... he took a break from trash-talking Henry Cejudo to tell us he's dead serious about a future tilt with Gervonta.

"This is a guy I would love to step into the Octagon and show him what fighting is really about," Dillashaw says.

Of course ... Gervonta's never fought in the Octagon before -- so the match would take some time to come together.

UFC legend Donald "Cowboy" Cerrone says he's lucky to be alive after a major disaster during a cave diving excursion in Mexico ... but he told the Grim Reaper, "Not today Mother F**ker!"

Cowboy is an avid diver -- and went to Cozumel to explore some of the underwater caves with a team of scuba divers.

FYI, some of the caves extend about 11 miles inland.

During the dive, Cowboy says he had a "catastrophic worst case scenario" when the gang was caught in a "silt out" ... which is when particles on the sea floor get kicked up, causing ZERO visibility for the divers.

Cerrone says he lost the cave line -- which would have led him out of the cave -- and couldn't find his diving partner.

But, Cowboy kept his composure and ultimately found his way back to safety.

After the incident, Cerrone explained -- "Told the grim reaper 'Not today Mother F**ker' I’m figuring this the f**k out and coming home!!"

Tyron Woodley was so pissed off that he was forced to sit near Darren Till at UFC 227 -- he stormed out of his seat and ordered staff to open a room at the arena so he could release some of his aggression in an impromptu training session.

Woodley and Till are scheduled to fight at UFC 228 in Dallas on Sept. 8 -- but, Tyron says someone at UFC 227 in L.A. thought it would be "real cute to put two f**king dogs next to each other right before they're about to fight."

It didn't sit well with the champ -- and things erupted right inside Staples Center.

Tyron tells the whole story on this week's 'Hollywood Beatdown' -- where he also rips Donald Trump over his "blatantly racist" comments about Omarosa.

Dana White once hated Tito Ortiz's guts so much that the two men almost had a real-deal boxing match in 2007 -- but we're told the two are actually on good terms now.

It's no secret that White and Ortiz clashed -- but things got so bad back in the day that Dana says the guys were gonna duke it out FOR REAL in a boxing match until, at the 11th hour, Ortiz got cold feet.

White tells Harvey Levin the story about how he brought in a boxing coach and a team to prep for the fight and it'll all be featured on "OBJECTified," which airs Sunday on FOX News Channel.

What's really interesting ... White is CONVINCED he would've won the fight over the UFC Hall of Famer, telling Harvey he had real boxing experience back in the day and felt he is a superior striker.

"I absolutely would've won that boxing match."

Before he fought guys 1-on-1 in the Octagon, UFC star Derrick Lewis says he once destroyed TEN GUYS at the same time during a crazy brawl ... and he's telling the story to TMZ Sports.

It all went down back when Derrick was a high school student back in Houston, Texas -- when Lewis says he confronted a bunch of "greaser guys" in a back alley near his friend's house.

"It was about 10 guys ... all like greaser guys with their sleeves rolled up. Something that you would see in the movies, they all in white shirts with jeans on."

"They didn't expect me to come out there -- a black guy in type kind of neighborhood to come outside and I just started whooping up on all of 'em because they were at my buddy's house starting all this mess."

"That was a fun night -- I just started knocking 'em out left and right."

One of the stars of 'Kill Bill' is ALL IN for making a 3rd installment -- with Vivica A. Fox telling TMZ Sports she thinks Ronda Rousey would be the PERFECT star.

Of course, Viv starred in the original flick as Copperhead -- one of the infamous Deadly Viper Assassination Squad members targeted by Uma Thurman's character, Black Mamba.

So, when she heard Ronda was campaigning to play Uma's daughter if Quentin Tarantino decides to make 'KB3' -- Fox LOVED the idea.

"I love Ronda Rousey," Fox said ... "So, you come join the 'Kill Bill' franchise, 'cause we love kick-butt chicks and it's excellent casting for you to play Uma's daughter."

"And you can fight my daughter! And then Uma can be in the background talking about throwing blows on it. All right, I think that's excellent casting."

Fun Fact: 'Hunger Games' star Amandla Stenberg has already thrown her hat in the ring to play Viv's daughter!

There is one pretty big hurdle ... Quentin isn't working on part 3 and hasn't announced any plans to do so in the near future.

Khabib Nurmagomedov is going to MURDER Conor McGregor when they face off at UFC 229 in October ... this according to former UFC heavyweight champ Fabricio Werdum.

The 41-year-old legend was at LAX when we asked to pick a winner in the upcoming superfight -- and Werdum didn't hold back.

"I think Khabib will kill Conor McGregor," Fabricio told us ... "For sure."

Werdum says when it comes down to it, Khabib is a great fighter and built tougher than his Irish opponent.

Not everyone agrees with Fabricio ... UFC Hall of Famer Urijah Faber is going with McGregor -- telling TMZ Sports he's got one major advantage Khabib won't be able to overcome.

Two UFC champs came face-to-face in the TMZ newsroom on Monday -- talking all sorts of smack to each other ... and begging Dana White to let them settle their beef in the Octagon.

Henry Cejudo had called out T.J. Dillashaw at UFC 227 -- saying he'd come up in weight to fight T.J. for his bantamweight title. T.J. says he's 100% down.

We invited both guys to appear on the "TMZ Sports" TV show (airs weeknights on FS1) and they accepted ... and the sparks immediately began to fly.

T.J. said he'd knock Henry the hell out, and Henry shot back, "Be careful what you wish for."

T.J. also said a fight with Henry would be "easy money."

Henry said he'd destroy Dillashaw on the ground or on his feet.