Boxing

Floyd Mayweather could lose tens of millions of dollars from his big payday if his baby mama gets her way ... because she's just filed a lawsuit claiming he ruined her with lies to save his own ass.

Josie Harris, who has 3 kids with Floyd, claims he lied through his teeth in an interview with Katie Couric just 2 weeks before the big fight ... when he claimed Josie was in a drug-fueled rage and he had to "restrain" her during their infamous 2010 domestic violence incident.

Point of fact ... Floyd was convicted of domestic violence and spent two months in jail.

Josie recounts her terror in the lawsuit, explaining how she and Floyd had broken up ... but he flew into a jealous rage that night, broke into her home and viciously attacked her while she was sleeping on her couch ... and her kids saw part of the beating.

Harris says she is now labeled a drug addict thanks to Mayweather's lies -- and was embarrassed and humiliated on a global scale.

Her lawyer, Dan Friedlander, writes in the lawsuit -- Floyd's lies to Couric "were knowingly fabricated in order to hype Mayweather's upcoming fight with Pacquiao, to avoid bad press by deflecting responsibility for beating the mother of his children."

Jamie Foxx says his blackness compelled him to do a big over-the top-rendition of the national anthem at the Mayweather fight ... and says technical problems are the only thing to blame for the sharp criticism.

Foxx just appeared on "Ellen" -- and explained that his ear pieces failed while he was in the ring ... causing him to be out of sync with the orchestra that was playing beside him.

Despite the mishap, Foxx says his performance "killed" in the arena (in a good way) ... a statement that seems to be refuted by video of Jake Gyllenhaal ... who couldn't have looked less impressed.

Still, good to have confidence ...

Look, Jamie Foxx's version of the National Anthem was not great ... but it wasn't Roseanne Barr either ... so says Marlon Wayans ... who says he has an idea why Jamie may have shot a brick at the Mayweather fight.

Long story short ... Marlon suspects the booze is to blame -- since Jamie was partying with some big dawgs like Puffy and Floyd ... and ultimately gave in the power of the blue dot.

For the record, Wayans says Foxx is a talented genius who's got serious pipes -- he just had an off night.

Here's footage of boxing superstar Adrien Broner GOING ABSOLUTELY BERSERK after winning at the baccarat table in Vegas Sunday night ... yelling, screaming and AIR HUMPING the table.

It's unclear how much cash Broner had on the table in the high roller's room at the MGM Grand -- but it must have been A LOT ... because any normie woulda been kicked out of the place in a heartbeat.

The video is pretty hilarious ... Broner starts yelling about how he "f**ked this town up" with "no condoms" ... while thrusting his junk into the table.

Congrats.

BTW -- Broner's weekend was definitely eventful ... here's video of AB pounding a whole lotta tequila at a post-fight party.

At least ONE Mayweather went down this weekend ... Floyd's father ... who ate it HARD during a pre-fight concert ... and TMZ Sports has the video.

Floyd Mayweather Sr. got up onstage and did his best James Brown impression to the tune of "Sex Machine" at the Fiesta Rancho Casino in Las Vegas on Thursday.

But while he was lettin' loose -- he lost his footing ... and went crashing down to the dance floor.

The good news -- like a true pro, the 62-year-old popped RIGHT BACK UP and continued to dance ... even busting out the signature James Brown "Camel Walk" dance move.

The Mayweather vs. Pacquiao fight was unanimous in everyone's eyes, but Manny's aunt and cousins are steadfast ... the fight was fixed.

Aunt Lilia and crew were leaving the Mandalay Bay on Sunday when our photog asked whether Manny was cheated, remember the boxer felt he had won the fight. His family went 5 steps further and claimed the whole thing was rigged and people got paid off.

They weren't done... they also trash talked Floyd.

TMZ Sports got Aunt Lilia back in March when she belted out the signature tune from 'Frozen." She might want to take some advice ... let it go.

Nobody was feeling Jay Z's after party in Las Vegas the way he was -- and that's a good thing ... 'cause from the looks of It Jay just wanted to be somewhere else.

Jay Z hosted, undoubtedly, the most exclusive Mayweather-Pacquiao bash at Marquee Nightclub Saturday night ... VIP tables went for $50k.

He and Beyoncé held court at their own table right on the dance floor -- but while the DJ was trying to get the crowd going, Jigga seemed to be dreaming ... of laying his head on his pillow.

Justin Bieber was amped up at Rehab in Vegas before the fight ... singing to Big Sean -- which is surprising -- and making his feelings about Manny Pacquiao clear.

Justin partied with the crowd before walking out with Floyd Mayweather, and at 33 seconds you can see him mouth the words, "f*** Pacquiao" ... he then flips the bird.

It's also interesting he's felling Big Sean, whose breaking with Ariana Grande did not go well. You'll recall he just gave her a squeeze from behind a few weeks back, which set Sean off. We're told Sean doesn't have hard feelings for Biebs ... he thinks Ariana just used him.

8:20 AM PT -- Jake's rep tells TMZ the actor was not passing judgment on Jamie's performance, saying, he and Antoine "were laughing at something completely unrelated to Jamie's performance."

Jake Gyllenhaal was not impressed by Jamie Foxx's soulful rendition of the National Anthem, but at least he got in a few laughs.

Jake was sitting ringside with his "Southpaw" director Antoine Fuqua when Jamie took the mic. No doubt Jamie struggled ... he took his earpiece out immediately which is a sign of technical trouble.

Jake and Anton yukked it up and Jake checked his texts, then briefly sung along.

In case you wondered if the Mayweather/Pacquiao fight was a rich people's event, check out the aerial view of the private jets at McCarran International Airport in Vegas.

The pic was snapped Saturday and it makes it very clear ... you won't see many 7-figure figures sitting backwards on Southwest on the ride back.

Floyd Mayweather may have hugged Manny Pacquiao after the fight, but all is not forgiven with Floyd's fierce grandma.

Bernice Mayweather was leaving the MGM Grand in Vegas after the fight when to told our photog ... there can be no post-fight friendship until Manny takes back all his trash talk against the champ.

Jake Gyllenhaal is no boxing fraud -- the guy can brawl for real ... this according to a real deal ex-kickboxing champ who worked with Jake on his new boxing flick.

TMZ Sports spoke with David Buglione -- a former U.S.K.B.A World Welterweight Kickboxing Champ -- who worked closely with Jake as his stunt double in "Southpaw."

Long story short ... Buglione says Jake trained so hard for the role, he feels he made himself into a legit boxer.

"Without a doubt he could compete. The time he put into the role, the way he transformed his body. It was incredible."

"He started training 3-4 months before the thing even started. By the time we got into it he'd picked up angles, knew how to move and pivot, and sit on his punches."

Lesson? Don't judge a book by it's cover ... or Bubble Boy might just kick your ass.

MOST BALLER DAY EVER!!!!!!!

Rob Gronkowski -- along with some of his New England Patriots teammates -- just hopped on a private jet after watching the Kentucky Derby ... and are now headed to Vegas for the fight!!

BALLER!!!!!!

The Derby was a major team outing -- even Tom Brady made the trip out to Louisville -- but it looks like the QB tapped out when Gronk and Julian Edelman and Danny Amendola decided to charter a jet to Sin City.

It's good to be rich.

11:45 AM PT -- Michelle just tweeted -- "After hearing my credential was pulled, I went home. Told this morning that HBO was able to get it re-approved late last night. That's it. All she wrote. I will now concentrate on Game 7. #GoSpursGo"

10:53 AM PT --Floyd's camp says the reporters are ALL WRONG -- claiming they were NEVER blocked from attending the fight.

Floyd's rep Kelly Swanson just went to Twitter and said, "No one including ME banned [Rachel Nichols] from covering the fight. She is already credentialed. #Facts"

"And [Michelle Beadle] isn't even on the pres list. She's credentialed through [HBO Boxing]. Yes credentialed. #Fact#2"

Swanson says both reporters still have their credentials.

ESPN reporter Michelle Beadle says she has been blocked from attending tonight's Mayweather v. Pacquiao fight ... and claims it's all because she ruffled some feathers in Mayweather's camp.

Floyd's camp hasn't explained why Beadle is blocked -- but it seems it has to do with the fact Michelle has been critical of Floyd and his history with domestic violence.

CNN reporter Rachel Nichols says she has also been blocked from the fight -- Nichols has suggested the ban has to do with the fact she pressed Mayweather on his violent past during an interview back in September.

We're reaching out to Mayweather's camp for an explanation, stay tuned.

If the 'look good, feel good, play good' adage is true ... Manny Pacquiao might be in trouble tonight ... 'cause TMZ Sports has the FIRST pictures of Floyd's fight night boxing gloves ... and they're SWEET.

Boxing brand Grant Worldwide's CEO Elvis Grant Phillips tells us his company hooked the champ up with 8 custom pairs of gloves. Mayweather picked his 3 favorite ... that he'll take to the MGM Grand.

We're told Floyd's torn between the Red/Blue/Silver and Gold/Red/Blue pairs ... it's a tough decision, 'cause he loves them both ... especially the metallic color schemes, which run $2,500-a-pair.

As far as Manny, no word yet on what his gloves look like ...

It was supposed to be the hottest ticket of the year ... but it's gone cold ... and now multiple investors who tried to flip tickets to Mayweather vs. Pacquiao tell TMZ Sports they're losing BIG MONEY.

As we previously reported, ringside seats hit the market for upwards of $80,000 ... and face value of the crappy seats originally went on sale for $1,500.

A bunch of high profile ticket brokers and investors bought up as many tickets as they could get -- thinking it was a sure bet ... since interest in the fight has been through the roof.

But it just ain't panning out -- with one broker blaming the high prices and the fact that tickets only went on sale 10 days before the fight -- and investors are losing their asses.

One company told us they initially bought 80 tickets ... but only moved 20 ... and now they're holding the bag on 60 high-priced stubs.

"It's an embarrassment. We lost a significant amount of money," one broker tells us.

Same story for another ticket broker -- who tells us things have gotten "desperate" and they're slashing prices like crazy.