Nyjah Huston jumped a guy at a house party and beat the man's face so viciously he needed surgery to fix a broken nose ... this according to a new lawsuit. 

According to legal docs, obtained by TMZ, Ryan Sheehy claims he was at a February 12, 2017 house party in Los Angeles when Nyjah jumped him and started beating the hell outta his face.

In the docs, Ryan claims the pro skateboarder's attack left him with a broken nose, which required reconstructive surgery, and a cut above his left eye, which required stitches and left a noticeable disfigurement. As a result of the injuries, Ryan claims he suffered immense pain and was forced to miss work. 

We broke the story ... the L.A. County D.A. charged Nyjah with felony battery after the alleged fight.

Ryan is going after Nyjah for damages. 

Despite the felony charge and lawsuit, Nyjah has still been skating and just claimed his fifth career Street League Skateboarding World Championship title. 

Andy Reid WILL win a Super Bowl with the Chiefs despite yet another championship game heartbreaker Sunday ... so says legendary coach Dick Vermeil.

"I would bet on it!" Dick tells TMZ Sports ... "I would bet that they will win one!"

Of course, Reid's history says otherwise ... his loss to the Pats on Sunday was his 6th championship game L (4 NFC championships, 1 AFC championship and 1 Super Bowl) in his 20-year, ring-less career.

But, Vermeil says Reid WILL get it done sooner than later ... saying K.C. is just too talented.

"There's no question in mind they will get there and there's no question in mind, if he sticks with it long enough, he's gonna win it."

In fact, Vermeil thought earlier this season THIS would be the year for Reid ... and said he was downright ill seeing Reid and the Chiefs fall to Tom Brady in overtime.

"Kansas City, I'm just sick. I woke up three times during the night thinking about that ballgame. I was so disappointed."

2019 season kicks off in 7 months ... could that finally be Reid's year??

Stay tuned.

Allen Crowder -- the UFC fighter who took a vicious knee to the head from Greg Hardy on Saturday -- says the move was NOT a dirty one ... telling TMZ Sports, "sh*t happens."

Hardy and Crowder squared off in the co-main event of UFC on ESPN+ ... but the match ended in the 2nd round after Greg blasted Allen with a right knee to the temple while he was still down.

Hardy was DQ'd ... and given his troubled past -- many wondered if the ex-NFL player who has been previously accused of domestic violence MEANT to throw the illegal shot.

But, Crowder says he doesn't think Hardy had any malicious intentions with the move ... saying, "it's a fight. It's the heat of the moment."

"There's a lot of people that have made the same mistake. I have no hard feelings against him at all. He was tired, and sh*t happens. I have no hard feelings about it at all."

For his part ... Greg says he didn't know the knee was illegal -- saying, "it was not intentional."

FYI ... Crowder says if officials had given him another 30-or-so seconds -- he woulda gotten up and continued the fight.

As for a rematch ... Crowder says he'd be down -- if the price is right.

Greg Hardy’s illegal knee that led to his DQ loss at #UFCBrooklyn. @GregHardyJr pic.twitter.com/9YOvb9S1FH

— Untitled MMA (@UntitledMMA) January 20, 2019

Alex Smith ain't out of the woods yet -- the QB is still using crutches and a complex brace around his leg ... 2 months after suffering a gruesome injury against the Texans. 

The Washington Redskins star finally surfaced in public Monday at the Wizards-Pistons game in D.C. with his leg wrapped in bandages and what appears to be a Taylor Spatial Frame. 

FYI, a TSF is often used by doctors to treat compound fractures. It essentially helps the bone heal correctly with the use of pins, wires and rods. 

Smith's right leg was snapped in half in a game against the Texans on Nov. 18 ... with Smith ending up breaking both his fibula and tibia to the point where bone poked through the skin.

In fact, the injury was so devastating ... reports say Alex needed further surgeries to correct an infection he got following the first operation to fix the issue.

Alex Smith spotted at the Wizards game, his first public appearance since leg surgery 👀#Wizards #Redskins pic.twitter.com/zYj5hIzf9W

— NBC Sports Wizards (@NBCSWizards) January 21, 2019

But, Smith seemed to be in good spirits as he watched the hometown Wizards from a press box ... even smiling as he spoke with people in the arena.

It's unclear whether Smith plans to play ever again ... releasing a statement just a few weeks ago, saying, "Although this is a serious injury, Alex and his family remain strong."

"We would ask that everyone please honor the Smith family's request for privacy at this time."

Tiffany Haddish gave Adrien Broner's swollen face something to grin about after loss to Manny Pacquaio ... bum-rushing his post-fight press conference and doing her best to lighten the mood.

Broner took to the podium to explain once again how he didn't lose the fight ... and after a couple of regular questions from media, a very familiar voice from "South Central News" started in.

Of course, that reporter was Haddish -- and rather than ask anything about the fight, Tiff wanted to know how and where she could get some Fashionova duds from Broner, who's been rocking the brand lately.

Broner shoulda been ready for questions from Haddish, because she'd turned up earlier in the presser, asking equally amusing questions to light heavyweight champ Marcus Browne.

Now we don't know how Tiffany made it into the event, or why she did it, but we do know this ... it was the most entertaining part of the night.

#SheReady.

Why do so many people HATE the New England Patriots -- the greatest dynasty in the history of pro sports?  

That's the question we posed to Rob Gronkowski's smokin' hot girlfriend, Camille Kostek -- and her answer was simple ... JEALOUSY! 

"You hate us 'cause you ain't us," the former Pats cheerleader told us at LAX. 

Kostek -- who's also a Sports Illustrated Swimsuit Edition model -- just got off the plane from Kansas City where she battled freezing temperatures to support the future Hall of Famer ... and told us how the couple celebrated the big win. 

So, how does Gronk feel about going to ANOTHER Super Bowl?? 

"He's amped, he's so pumped," Kostek said while admitting the constant winning NEVER gets old! 

As for the big game, Kostek says she's friends with Rams QB Jared Goff -- but that goes out the window on February 3 ... 

"All I gotta say is, good luck! I think it's gonna be a great game ... Patriots coming out with a W."

Ex-Dallas Cowboys running back Darren McFadden was arrested in Texas early Monday morning after officials say he was driving drunk at a Whataburger ... TMZ Sports has learned. 

Sources tell us the 31-year-old was asleep behind the wheel of a 2019 GMC Yukon in the drive-thru at a Whataburger in the Dallas-Fort Worth area. 

During the incident, cops say McFadden was resisting officers. Multiple sources tell us McFadden's driver's side and passenger windows were smashed during the incident. 

Cops responded to the scene and arrested McFadden. He was taken to a nearby station where he was booked for DWI and resisting arrest. He was released on bond a short time later. 

McFadden was a star during his college days at Arkansas and was selected by the Oakland Raiders with the #4 overall pick in the 2008 NFL Draft. 

After spending 7 seasons with the Raiders, McFadden later signed with the Dallas Cowboys, where he played until 2017. He retired after that season.   

Despite never making a Pro Bowl, McFadden got PAID during his 10 seasons in the league -- reportedly earning roughly $50 MILLION during his career. 

Story developing ... 

Ex-NFL star Tiki Barber made his Broadway debut in "Kinky Boots" this weekend -- dancing and singing in a pair of red thigh-highs ... and he slaaaaayyyyyyed. 

The former New York Giants running back played Don the foreman in the Broadway play, which required him to flex his vocal range and hit a high note in one of the songs. 

Look, he's no Celine Dion -- but he was pretty good ... and the crowd loved it. Dude even got his own bouquet of roses at the end of the performance. 

Don't fret if you missed the show -- Tiki's run on Broadway goes until March. 

And, get this -- the music and lyrics for the show were written by Cyndi Lauper! 

Barber isn't the first NFL star to take his talents to the stage ... Eddie George has become a big-time actor and even starred in "Chicago" a few years back. 

And, yeah, that was also Eddie on Sunday's episode of "Magnum P.I." 

Harry Connick Jr. is so pissed off over that non-pass interference call at the end of the NFC championship game, he wrote a letter to Roger Goodell saying he's boycotting the Super Bowl. 

The Grammy-winning crooner is a HUGE Saints fan (he was born and raised in New Orleans) -- and while he's usually a chill guy, his blood was BOILING when his team got screwed by the refs in the waning minutes of the game. 

So, Connick decided to pen a letter to the NFL boss -- telling the Commish he's mad as hell at the officiating and he ain't gonna take it anymore. 

"Until changes are made, specifically, booth review of outcome-altering no-calls, you can count me out," Connick Jr. wrote in his letter.

"I'm not watching the AFC championship game and I won't be watching the Super Bowl."

So far, no response from Goodell. 

Here's Harry's letter in full ... 

"Dear Commissioner Goodell,

Please know that I would've written this letter regardless of which teams were playing in the NFL championship.

I love the game of football so much -- the NFL gives me great joy and has for many years. To not call the pass interference/helmet-to-helmet penalties at the end of the game was one of the most disgraceful no-calls I have ever seen.

The officiating this year has been, for the most part, mediocre, in my opinion. But for a game as important as the NFC championship, it sickens me to know that the people who are assigned to fairly officiate the game seemingly had no regard for not only a dangerous penalty but one that would certainly have changed the outcome of the game.

Until changes are made, specifically, booth review of outcome-altering no-calls, you can count me out. I'm not watching the AFC championship game and I won't be watching the Super Bowl.

Thank you for taking the time to read my letter.

Sincerely, Harry Connick, Jr."

Detroit rapper Tee Grizzley is pissed at Adrien Broner ... saying Adrien cost him a grip of cash when he got punished by Manny Pacquiao ... a $20,000 grip to be exact.

Broner got his ass handed to him Saturday night, in a fight where he only landed 50 punches and spent most of the match on his bike, running from a 40-year-old.

After the fight, Broner told Jim Gray he believed he won the fight -- and noted his pals in the "hood" were behind him. 

"I did this for the hood," Broner said during the post-fight interview ... "You know I beat that boy."

Most of Twitter was disgusted with AB's performance, but Tee was especially pissed -- taking to social media to throw major shade at Broner. 

"AB, what hood was you doing that sh*t for bro? You shootin' dice and all in the airport playing and sh*t, you shoulda been training. I lost 20 racks f*cking with you."

Broner normally comes back hard when somebody gets at him, so we'll have to see if he responds to Tee ... but with all the smoke he had for Jim Gray, we'd be kinda disappointed if he didn't.

2:00 PM PT --Steiner Sports now tells us the consignor agreed to wave the reserve ... meaning the ball has sold for over $18K.

10:10 AM PT -- Steiner Sports tells us bidding for the "Miami Miracle" ball hit $18K ... but failed to reach the $20,000 reserve price -- so the sale didn't go through.

The football used to sink the New England Patriots in the "Miami Miracle" game earlier this season just sold for $18k at auction ... TMZ Sports has learned.

The pigskin Kenyan Drake famously ran in with no time left on the clock in a Week 14 stunning win over the Pats received plenty of attention -- earning 23 total bids during the Steiner Sports auction.

But ... we're told Kenyan -- who openly pled for fans to give him the game-winning football in a trade for some Dolphins gear and tickets -- wasn't one of the bidders.

THE MIRACLE AT HARD ROCK STADIUM

📺 » @NFLonCBS#NEvsMIA #FinsUp pic.twitter.com/Aoc1L5LcGG

— Miami Dolphins (@MiamiDolphins) December 9, 2018

Still, the ball could be a great investment for whoever ultimately won it ... it could be one of the only blemishes on what might end up being Tom Brady's last Super Bowl run (then again, who knows with this guy). 

Probably worth a little more than some gloves, a jersey and tix -- right, Kenyan??

Baker Mayfield took ANOTHER jab at Hue Jackson ... AND joked about a crotch grab that got him suspended -- and it all went down in a video skit with Peyton Manning's bro.

Baker went on Cooper Manning's "Manning Hour" -- a FOX NFL Sunday skit ... and while he was "cooking" up a cake -- he took a jab at his ex-coach while praising his current one.

"Yeah, anything is better than Hue... I mean you." 😶

It's the season finale of the #ManningHour featuring Baking with @bakermayfield! pic.twitter.com/GX0NXlYauN

— FOX Sports: NFL (@NFLonFOX) January 20, 2019

Cooper: "Look, if you're not a fan of kitchens, it's OK."

Baker: "No, I love kitchens."

Cooper: "Yeah, kitchens are great. They're better than Jacksons."

Baker: "Anything's better than Hue -- oh, um, you."

Of course, Mayfield and Jackson have had a longstanding beef ever since Hue bolted for the rival Bengals after being fired from Cleveland back in October.

There's more ... Mayfield also mocked a sideline crotch grab that earned him a suspension back when he was a QB at Oklahoma.

Cooper: "Grab the nuts."

Baker: "NFL doesn't really like it when I do that."

Cooper: "No, the nuts!"

Baker: "Oh! Sorry, I have a history with that."

This ain't the first time this month Baker's mocked an issue he's had in the past ... he also laughed off his Arkansas arrest in a Fortnite stream last week.

It all makes us wonder once again ... is Lincoln Riley laughing yet???

How's the LAPD celebrating that Rams victory over the Saints? THEY'RE TALKING TRASH!!!

Right after that controversial ending in the NFC championship game, the LAPD reached out to their Nawlins counterparts on social media with some epic smack talk over that non-pass interference call that cost the Saints the game. 

"Sounds like our friends at [The New Orleans PD] might be dealing with some robbery complaints after the #LARams⁠ ⁠defeated the @Saints," the LAPD said on Twitter. 

"We would help investigate but A) it’s outside our jurisdiction, and B) we just don’t see enough evidence of a crime."

Translation -- SUCKS TO BE YOU!! 

That's not all ... some people in New Orleans are so pissed off about the referee situation, that a local optometrist is offering free eye exams to all NFL zebras! 

"We will GLADLY provide no cost eye exams to all NFL officials prior to next season to prevent the atrocity that occurred tonight," Louisiana Family Eyecare posted on its Facebook page.

"We would hate for someone else to feel our pain."

Anyway ... GO RAMS!!!