Floyd Mayweather Rocking $25,000 Mouthpiece With Real $100 Bills Inside

Floyd Mayweather is so MONEY -- his mouthpieces are stuffed with REAL $100 BILLS ... TMZ Sports has learned.

This is no joke ... we've learned Floyd pays roughly $25,000-a-pop to get custom grill-protectors from NYC-based dentist Dr. Lee Gause -- one of the most famous mouthpiece makers in pro sports.

So why the high price tag?

Well, the fact Floyd often customizes his guards with things like gold flakes, diamonds and real $100 bills (sealed inside the mouthguard) ... ups the price from the regular pieces.

Plus, Dr. Guase often flies out to Vegas to customize the fit for "Money" before a fight -- and Floyd says Gause's guards help him breathe better than other mouthpieces.

We spoke with Floyd, who tells us, "My career's gone on 19 years and I've been able to preserve my smile."

Floyd Mayweather Drops $300K On Land Yacht... With 55 Inch TV, Bar & Massage Chairs!!

Floyd Mayweather dropped $300,000 on an insanely luxurious customized Mercedes party bus ... with a HUGE TV and BAR ... and had it shipped across the desert last night ... TMZ Sports has learned.

The whip ... a souped up Mercedes-Benz Sprinter a.k.a. "Land Yacht" ... was designed specifically for Floyd ... and it's AMAZING ... even for a guy with an RIDICULOUS car collection worth over $7 mil!

The specs ... 55 in. TV with Apple and DirecTV, Surround Sound stereo system, Maybach heated massage chairs, Champagne bar, and cabin lighting system ... to name a few.

Our sources tell us Floyd wanted the party bus last night ... so Fusion Luxury Motors in L.A. ... who acquired the Land Yacht for the champ ... delivered it from Cali to the boxers Vegas mansion.

Check out the pics ... there's a reason they call it a Land Yacht.

'Sugar' Shane Mosley Gets Last FAT ASS Laugh In BKB War

Accusing former champ "Sugar" Shane Mosley of being "fat as s**t" ... came back to bite BKB Middleweight champ Gabe Rosado in the ass -- dude did NOT make weight for his title bout!

Mosley wasted NO TIME ripping Rosado a new one by posting a pic of Curtis Stevens -- the fighter he trained for Saturday night's fight with Rosado. He captioned it, "The face you make when your bitch ass opponent doesn't make weight. #fatass #BitchAss #F**kRosado"

Shane's celebration was brief. BKB says Rosado had 60 minutes to cut weight, and he managed to lose 2 pounds in that time! His final weigh-in for Saturday night's PPV bout was 159.

Of course, 24 hours ago ... Rosado was the one fat shaming Shane, but shoe's on the other bloated foot now.

Mickey Rourke to Pacquiao: I Don't Want Free Tix I'd Rather Watch at Home

Mickey Rourke says he doesn't care that Manny Pacquiao's camp won't hook him up with free fight tickets -- 'cause he doesn't wanna go anyway!!!!

Anyone buyin' that?

As we previously reported, Pac's promoter Bob Arum told Mickey he'd have to buy "his own damn tickets" if he wanted to be ringside ... even though he and Manny train at the same L.A. boxing gym.

But when we got Mickey out yesterday, not only did he blow off the ticket thing ... the 62-year-old also told us he wants to get back in the ring himself!!

You know ... 'cause it went so well last time.

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'Sugar' Shane Mosley Blasted by BKB Champ ... You're a Fat, Washed Up Bitch

Ex boxing champ "Sugar" Shane Mosley got smacked up, verbally -- and damn near physically -- during an explosive pre-fight news conference for this weekend's BKB Championship bout.

The video is intense ... so here's what you need to know: the BKB middleweight champ is Gabe Rosado (scary dude with tatts and shades) and the challenger is Curtis Stevens (not so scary dude in Giants hat). They don't like or respect each other one bit.

The scene erupted Thursday in Las Vegas when 29-year-old Gabe and his trainer started calling out Mosley. 43-year-old Shane trained Curtis, but ended up getting called out for being overrated, fat, and a bitch ... for starters. And for some reason, the entire state of North Dakota got dissed too.

It seems a little scripted, but it definitely hypes the fight -- going down Saturday night on PPV. Don King would be proud.

Sidenote: If you don't know what BKB (Big Knockout Boxing) is ... it's pretty awesome. Much smaller ring, no ropes, and a ton of knockouts. Mike Tyson would be proud.

Larry Flynt I'm Betting On Pacquiao ... But Something's Fishy

Larry Flynt is not an idiot ... so when he suggests there are dark forces at work behind the scenes of the Mayweather vs. Pacquiao fight -- it's worth a listen.

The Hustler mogul was leaving The Palm restaurant in Beverly Hills last night ... when he gave us a very interesting answer to the whole "Who ya got?" question.

Check out the video ... Flynt says he thinks Mayweather should win the fight, but he's betting on Pacquiao -- and why?

Well ... it all comes down to money.

Muhammad Ali Family Feud Over Pacquiao vs. Mayweather

There is a rift in Muhammad Ali's family ... with the champ's wife and daughter calling each other out over who Muhammad is rooting for in the Mayweather vs. Pacquiao fight ... TMZ Sports has learned.

We broke the story ... Ali's daughter Rasheda says her father is "Team Pacquiao" and has been a huge fan and FRIEND of Manny's for years.

But moments ago, an Ali spokesperson issued a statement seemingly calling BS on Rasheda ... saying, "The stories that Muhammad Ali has chosen a favorite in the fight are false."

We just spoke with Rasheda .... who told us she stands by her original statements -- saying, "Everything in your [TMZ Sports] original story is an absolute fact."

"It was extremely accurate. It was exactly what I said to the word."

"Honestly, truthfully, everything I said was true. He is a fan of Manny."

Rasheda adds, "For political reasons, or other reasons, or because my dad didn't want to hurt anyone's feelings, Lonnie [Muhammad's wife] didn't want him to pick a side."

"After your article came out, Lonnie was fine with it. Other outlets took the story and twisted the words around and basically made it seem like my dad was going to be sitting in Manny's corner the night of the fight."

"They made it into something else."

Team Pacquiao No Free Tix for Mickey Rourke Want 'Em? Buy 'Em.

Manny Pacquiao's trainer says he's HAPPY to buy tickets to the big fight for some of his favorite V.I.P. celebs -- unfortunately for Mickey Rourke, he didn't make the cut.

Now, Bob Arum says he doesn't wanna disrespect the famous actor ... but says he ain't gettin' a free ride just because Mickey works out at the same gym where Manny trains.

So, who DOES get the hookup?

We already told you Bob promised a ticket to Ronda Rousey ... but now, Arum says there are a few other people he'll take care of ... some people with a VERY famous father.

Check out the clip.

Boxer Marvin Jones Dropping My Cell Phone in the Ring Cost Me the Fight!

It seems like a joke to everyone who saw it -- 'cause it was hysterical -- but boxer Marvin "Papi Gallo" Jones says dropping his cell phone from his trunks during a fight ... cost him the bout!

Jones was fighting Friday night in Florida when his cell phone -- yes, cell phone -- fell onto the mat right after the opening bell.

Jones tells TMZ Sports he was listening to music before the fight and tucked the phone into his shorts. When he headed to the ring, he pulled out his headphones ... but not the phone. Next thing ya know his Samsung Galaxy's taking a standing 8.

Jones says he lost as result of the blunder because it threw off his focus. He says he kept thinking, "Man, my cell phone just fell out in the ring – and on TV!"

For his next fight ... he says, "I’ll just have someone pat me down."

Dolph Lundgren Drago Would Crush Manny & Floyd 'They're Too Short'

There would be no Hollywood movie ending if Ivan Drago were to fight Floyd Mayweather or Manny Pacquiao ... so says Dolph Lundgren who claims the "Rocky IV" villain would CRUSH both dudes.

Dolph was out in Hollywood -- signing some pretty cool pieces of memorabilia from the 1985 classic -- when he told us Ivan would have a simple message for the real life boxers -- "You will lose."

Basically, when it comes down to it ... Dolph says Ivan (6'7") would have been too big and too strong for Pac (5'7") and May (5'8").

For the record, Rocky was only listed at 5'11" ... and we all know what happened there.

Chrissy Teigen $87k for Mayweather Tix?! Too Rich for My Blood!

Cross another couple of stars off the ringside list for the Mayweather vs. Pacquiao fight -- because Chrissy Teigen says there's no way in hell she and John Legend are paying $87k for tickets!

We broke the story ... a high end NY ticket broker is selling the first ringside seats for $87,500 each -- and says he's got multiple "serious" buyers lining up to throw their money around.

Which brings us to Chrissy ... who loves boxing ... who's married to a guy who also loves boxing ... who happens to be super rich ... and who also refuses to spend that kind of money on tickets.

And she's not the only rich star who says the tickets are a ripoff ... "Shark Tank" star Robert Herjavec is also refusing to pony up the dough.

So, what's Chrissy gonna do instead? She has other plans ... check out the clip.

Manny Pacquiao CELEB TRAIN KEEPS ROLLIN' Works Out w/ Mickey Rourke

Another day, another huge star at Manny Pacquiao's L.A. training camp -- this time, Mickey Rourke swung by for a workout ... and TMZ Sports has the footage.

Rourke -- sportin' a camouflage vest and some tight white bike shorts -- hit up Wild Card Boxing Club in Hollywood ... while Manny was inside gettin' his sweat on.

PacMan has been working out with a BUNCH of big stars lately -- including Tim Tebow, Dave Chappelle and Cuba Gooding Jr. ... and as we previously reported, Muhammad Ali is also rooting for him.

Not a bad fan base.

Mike Tyson Church Scooped Up Abandoned Mansion.. For $750k Steal!

The price was right for Mike Tyson's former Ohio palace to get snatched up by a fledgling church ... which got a very sweet deal for the 58-acres -- and we've learned Tyson will have an open invitation.

Pastor Nick Dejacimo with The Living Word Sanctuary tells TMZ Sports they dropped $750k on the land and the house ... which is 33,000 sq. ft. Yeah, that's a lot of money ... until you consider it was valued at $1.3 million in 1999.

Pastor Nick says the place is almost ready to move in -- "The skylights, arches, and windows in the pool area, it literally looks like a church." As for the dilapidated pool ... he says it will be filled in and converted to the sanctuary.

He adds his humble congregation of 140 has saved 9 years worth of tithing donations in order to make the purchase. In addition to the church ... they plan to renovate part of the land into a workout facility with a jogging path.

The pastor says once they're open for business ... "Iron Mike" is welcome to join them in worship any time.

'Shark Tank' Star Mayweather Ticket Prices Are Crazy ... Even For Me!

He's worth a gazillion dollars (or something like that) ... but even super rich "Shark Tank" star Robert Herjavec thinks paying $87,500 for a ringside seat to May vs. Pac is nothing short of crazy.

Herjavec was leaving Craig's in West Hollywood Monday night when we asked about the first fight tickets to hit the market -- and his reaction is interesting ... considering he's exactly the kind of guy who could actually consider forking over the dough for a seat.

That being said ... think Mark Cuban will buy a seat?

Muhammad Ali 'TEAM PACQUIAO'

"The Greatest" has picked a side in the fight of the century -- with Muhammad Ali's daughter telling TMZ Sports, "My dad is Team Pacquiao all the way!"

We spoke with Rasheda Ali -- who's very close with her dad -- and she tells us, "My dad really likes Manny. He's a huge fan of his."

"He knows Manny's a great fighter ... but it's more about what he does outside the ring. He's such a charitable person."

Rasheda says Manny and her father have been friends for years -- and he even came to Muhammad's 70th birthday party back in 2012.

As for Floyd Mayweather, Rasheda tells us her dad respects him as a fighter -- but says he and Muhammad are two VERY different people.

"My dad stood for things. Mayweather ... I don't think there's a comparison."

Unfortunately, Muhammad won't be attending the fight in Vegas ... but Rasheda says he wouldn't miss it for the world.

"There's no question he's going to order it. It takes my dad way back to when he was fighting."

Mayweather Fight Buyers Lined Up for $87k Tix ... Broker Says

Seems an $87,500 price tag isn't deterring rich people from the Mayweather vs. Pacquiao fight ... because the broker selling the seats tells TMZ Sports he's already got "serious" buyers lined up.

We broke the story ... the guy who runs Precision Concierge New York (PCNY) says he's secured 39 tickets to the fight, including ringside seats, which he's selling for $87,500 each.

Hours after he posted the tix and the prices, Oren Schneider says he's already had real interest from legit buyers looking to throw around some serious dough.

"I've been getting phone calls all day," Schneider says ... but so far, the ringside tickets have not been officially snatched up.

Stay tuned ...