UFC

Anyone betting on Ronda Rousey to beat Amanda Nunes at UFC 207 should be shakin' in their boots ... so says former UFC star Chuck Liddell.

TMZ Sports got the Iceman at LAX Wednesday and he painted a worrisome pic of Rousey -- who hasn't fought in more than a year.

Floyd Mayweather and Conor McGregor's war of words just got realer than real ... with Mayweather vowing to "slap the s***" out of the UFC star the next time he sees him.

Mayweather made the threat while doing an Instagram live chat on a boat (in full Hawaiian shirt mode) ... saying he's tired of Conor mentioning his name and he's now willing to take violent action.

This comes just days after TMZ Sports got McGregor out in L.A. dissing Mayweather yet again ... saying that it's himself -- not Floyd -- who's the biggest combat sports star in all the world.

Floyd was smiling when he made the statement ... but we know The Notorious one doesn't take any threats lightly ... and has had near-brawls with other UFC stars based on Twitter beefs in the past.

It's starting to get good, folks.

Cris 'Cyborg' Justino is officially a United States citizen!!

The Brazilian born UFC fighter was one of thousands who took an oath of citizenship in Los Angeles Tuesday morning at the L.A. Convention Center.

Get this ... Justino says she put "Cyborg" as her middle name on her docs, just to make things official.

Cyborg applied back in December 2015 ... and had previously had a visa for competitive athletes and a green card.

Hard to tell what Conor McGregor's more fired up about right now -- getting his hands on Floyd Mayweather ... or on a juicy fried chicken breast.

UFC star Paige VanZant says a super fight between her and Ronda Rousey is DEFINITELY a possibility ... as long as Rousey is willing to shed some serious pounds to make it happen.

The two ladies haven't exactly been cool with each other ... being locked in a yearlong feud that started when Ronda got pissed that Paige congratulated Holly Holm on kicking Rousey's ass.

Seems like that beef has cooled off lately ... but when we got Paige out in L.A. Monday she said she's definitely down to feud with Ronda in the Octagon ... as long as it's at a fair weight.

FYI -- Paige fights at 115, Ronda fights at 135 ... according to VanZant, the magic number here is in the middle ... at 125.

It's not an impossible scenario. Rousey has a massive fight coming up against Amanda Nunes at UFC 207 ... but if she gets past that test, a fight with Paige -- one of the biggest names in the sport -- could be huge.

Heavyweight Champ Deontay Wilder says there's only one UFC fighter he'd like to get in the boxing ring ... and it ain't Conor ... telling TMZ Sports he'd love to kick the hell out of Brock Lesnar.

We got the big man out at LAX and wanted to know which Octagon star he'd like to rumble with ... since boxing vs. UFC is all the rage these days.

He totally disses McGregor ... saying he's too small and not skilled at all ... but definitely had a guy in mind ... and although it's the biggest, baddest monster in MMA ... Wilder says he'd roll him.

The next time you're murdered by a blood elf rogue in World of Warcraft ... there's a good chance the person killing you is Ronda Rousey.

Turns out, the UFC star is SUPER into World of Warcraft -- and that's actually how she became friends with Vin Diesel on the set of "Furious 7."

Here's Ronda Rousey's badass comeback "Rocky" style montage -- complete with grueling workout sessions, full-speed wind sprints ... and a sick look at her mansion in the hills.

It's all part of the new promo for UFC 207 on Dec. 30 in Vegas -- and the message is clear ... Ronda has heard all the doubters and haters and CAN'T WAIT to prove 'em all wrong.

She's your problem now, Amanda Nunes.

IT'S TRUE!!

Conor McGregor DID shoot some scenes for "Game of Thrones" -- and will appear on the show next season ... so says Dana White.

The UFC honcho appeared on "Fox Sports Live" with Jay and Dan and confirmed Conor will be mixing it up with the Starks and the White Walkers and the Lannisters and everyone else n Westeros! (go to 4:30 in the clip)

"I knew that a few months ago that they were interested in putting him in the show," White said ... "And I'm glad he did it. It'll be great."

Dana didn't expand on McGregor's role -- but he's gotta kill someone, right????

Conor McGregor wants everyone to know he still has BOTH of his UFC championship belts -- and ain't NO ONE gonna take 'em!

The problem ... obviously ... is that the UFC has said Conor relinquished his featherweight championship last weekend because he can only defend 1 title at a time. He's keeping his lightweight title.

But Conor sees it differently -- he believes the "title" belongs to whoever physically holds the championship belts ... and as long as he has both belts in his possession, he still considers himself the "champ champ."

In fact, he took his belts on a private jet flight Monday morning.

Conor McGregor believes he's got all the advantages in a fight with Floyd Mayweather -- power, reach and youth ... saying, "Age waits for no man!"

McGregor talked about his possible boxing career during an event in Northern Ireland on Friday -- when, of course, the topic of Mayweather came up.

"If I focus with the work ethic I have solely on the sport of boxing, there’s no telling what I could do,” McGregor said.

"I would not go in there just to show up, I’d go in there to knock [Floyd] out. That’s it. He can be hit, he’s been hit before. Age waits for no man."

"I know the size is on my side, I know the reach is on my side, I know the youth is on my side."

He continued, "There’s a lot to lose for them, so that’s why they're scrambling ... but that’s okay, I’ll leave them scrambling. I’ve got some other boxing opportunities and potential opponents in mind. Some previous Floyd opponents. They can bring in anyone in the game. We’ll see what happens."

Someone brought up boxing champ Paul Malignaggi -- who called McGregor out on social media.

Conor's response? WHO THE F**K IS THAT GUY?!!

UFC tough guy Max Holloway says he's TEAM LEGALIZE WEED ... even though he doesn't smoke it himself.

After Nick Diaz spelled out why the UFC should do away with pot as a banned substance, we asked Holloway for his thoughts ... and he told us he's on board with the benefits of medical marijuana.

But the funniest part of this clip ... when he calls out Anthony Pettis -- diagnosing the UFC fighter with a case of "pussy-itis" ... and informing him, "I got the vaccine!"

Good news and bad news for Conor McGregor ...

GOOD NEWS: Northern Irish boxing superstar Carl Frampton -- the reigning WBA featherweight champ -- says he loves Conor and would be down to train with the guy if he's serious about boxing.

If Conor McGregor actually gets his $100 MILLION boxing match with Floyd Mayweather, you'll never see him compete in MMA again ... so says Tyron Woodley.

Tyron makes it clear, he wants NOTHING MORE than to fight Conor at UFC 209 ... but would totally understand if McGregor turns him down for the life-changing payday.

He also suggests Conor's decision to get a boxing license could just be a power move to stick it to the UFC -- which recently made CM relinquish his featherweight title.

One last thing ... Woodley -- who's been beefing with Conor since their backstage run-in at UFC 205 -- says he actually respects the guy for what he's done for the sport.

See, these guys can play nice.

UFC superstar Nick Diaz says he's the "face of weed for athletes" ... and isn't afraid to admit it.

In fact, Diaz says he's the "Number 1 athletic stoner besides Michael Phelps."

Diaz -- who's tested positive for weed on several occasions -- appeared on "The Jasta Show" and explained why athletes should be ALLOWED to smoke marijuana ... especially after a fight.

You gotta listen to Diaz explain it ... but essentially says he relies on weed to get his head right ... especially after he's been knocked out and he's discombobulated.

Diaz admits weed can be performance enhancing ... but no more so than vitamins.

There's also this ... Nick says his brother, Nate Diaz, was NOT smoking CBD oil after his UFC 202 loss to Conor McGregor -- he was blazing up good ol' fashioned weed.

Rising UFC star Khabib Nurmagomedov is FREAKING INSANE!!!!

Don't believe us? Listen to the man himself casually describe to TMZ Sports how he SPARS WITH LIONS as part of his training.

You heard us ... lions, like Simba and Mufasa except real and not animated ... meaning totally capable of ripping your face off at any minute.

He's conquered the wild before ... there's actually video of him wrestling with bears as a child ... but good news for all you Smokey's and Yogi's out there, KN says he's moved on to lions permanently.