There is a HUGE celebrity charity boxing match in the works -- with some big names being thrown around ... and we've learned Floyd Mayweather is now involved.

Our sources tell us ... the combatants are big stars -- we've seen the list but we're being told there's still a matter of locking everyone up.

One of the people involved is Floyd -- but we're told he will NOT fight ... instead, our sources say he'll be one of the judges, tasked with scoring the fight.

As for the fighters themselves, we can't give it away yet -- but 2 of the names are big boxing stars and others are from the NBA, Hollywood, comedy and MMA.

We're told event organizers are targeting the end of June at a venue in Las Vegas ... and they're working with health and wellness website Celebrity Sweat to put the whole thing together.

One source tells us the event is tentatively being called "Fight for a Cause" and will raise funds for the U.S. Military charities and COVID-19 relief.

The killing of George Floyd by a Minneapolis police officer is the latest example of a shockingly disturbing reality in America ... leading many to conclude it's "open season on black people" ... this according to the lawyer representing George's family.

Attorney Ben Crump joined "TMZ Live" Tuesday to express the shock, outrage and sadness so many are feeling following Monday night's brutal incident ... in which a cop, who was responding to a forgery call, choked off George's air supply until he died.

Crump says George's family is having a terrible time comprehending what's captured on video -- the cop kept his knee on Floyd's neck for 8 MINUTES, despite his pleas that he couldn't breathe ... and everyone's in disbelief at what Ben calls a lack of humanity.

As we reported ... the Police Dept. released a statement saying no weapons were used during the incident, but as Crump points out -- that statement doesn't address the officer's brutality, and there's no explanation or justification for what happened anyway. The P.D.'s initial statement seemed to justify the incident, and it appears it was released before the video surfaced.

The Mayor of Minneapolis has expressed outrage, saying, "When you hear someone calling for help, you're supposed to help. This officer failed in the most basic, human sense."

Of course, the cop responsible for the knee to the neck had a partner during the arrest, and Crump believes that officer's actions make him complicit in the killing. As Crump says ... this cop also ignored Floyd's cries and protests from people watching, and didn't do a thing to help.

Minneapolis PD Chief Medaria Arradondo seems to have reached a similar conclusion -- on Tuesday afternoon he announced the firing of 4 officers involved in the incident. The officers names have not been released yet.

Crump feels it's long overdue for police officers to be held accountable for their actions -- or inaction -- like this ... no more benefit of the doubt or obligatory moral high ground given. Listen to how Ben explains it, though ... he makes a very good point.

Finally, this case is being compared to the death of Eric Garner in 2014 because of the obvious similarities, and Crump says he's going to try to get Eric's family in touch with Floyd's ... a request made by Eric's mother.

Jill Zarin and her daughter, Ally Shapiro, are proven pandemic heroes -- just ask nurses all over the NY, NJ-area -- but now they're up against a new foe ... depleting funds.

The 'Real Housewives of New York' star and Ally hopped on "TMZ Live" Tuesday to talk about their "Noshes for Nurses" project ... which launched back in April.

Since then, they've been feeding hospital staffs -- 3 to 5 hospitals per day -- in and around the NYC-area, and also in Florida, where they're quarantining. They raised money for the venture through GoFundMe, but Jill says they've gone through about $60k in donations so far, and the money's running out.

One way Ally's trying to help the cause even more is by tie-dying face masks she sells for $25 a pop. For every mask the Sotheby's Institute of Art graduate sells, she's also donating a mask to a nurse, doctor or any hospital worker in need.

There is NO bad blood between WWE and Ronda Rousey -- so says Triple H who says he'll welcome her back in a heartbeat ... "as soon as she's ready."

"Of course, we want her. Of course, we do! One of the greatest performers for us ever," Triple H tells TMZ Sports.

It seemed Ronda pulled the ripcord on her WWE career back in April saying she refused to dedicate her whole life for some "f*cking ungrateful" fans.

Ronda also complained about the grind of being a pro wrestler -- and then seemingly took some shots on Twitter at WWE stars, Alexa Bliss and Lana.

That's a wrap, right? Not so fast ...

We spoke with WWE exec Triple H who tells us he's definitely NOT closing the door on reconciliation with Ronda ... but understands she needs a break.

"I think Ronda's in a place in her personal life where she's figuring some things out," Triple H says.

"But, the thing with Ronda is you never know what she is saying. Is she attacking the business really or is she attacking the business because she knows that's what will light up the fans that love the business?"

Triple H went on to RAVE about Ronda's skills and work ethic -- telling us she picked up pro wrestling faster than ANYONE he's ever seen ... including Kurt Angle.

Bottom line ...

Hundreds of air-filled hippo suits are selling out, possibly because they provide extra protection for folks to hug their loved ones ... as demonstrated by one loving daughter on TV.

The hippopotamus ballerina costume is ballooning in popularity, and the latest display was featured on the news at the Fox Trails Senior Living Home in Stephens City, Virginia last week.

A daughter dressed up as a large gray hippo in a tutu in order to embrace her mother living at the residence ... while still protecting against COVID-19. The nursing home staff reportedly came up with the idea to use sterilized suits so family members can hug during visits.

Inflatable costumes like the ballerina hippo are in high demand right now, too. This particular suit has been getting scooped up by consumers since "social distancing" became a thing ... in fact, there are only a few left in stock at top online costume retailer HalloweenCostumes.com.

We're told the company sold around 75 of the same hippo ballerina costume in 2019, but this year ... 450 suits have pranced out of its warehouse, so far.

The item’s the third top seller on the site right now, even after doubling its original price tag to $120 thanks to popularity and white-hot demand.

Holding the top spot is the "Jurassic World" T-Rex inflatable suit, which is currently out of stock. Owner Tom Fallenstein tells us only 20 of the air-filled $89.99 dino costumes were purchased in 2019 ... but it came roaring back this year with 600 units sold.

A few of the customers decked out as dinosaurs paid a visit to another senior living home’s parking lot earlier this month ... to lift the spirits of the residents sheltering indoors.

The snitch is back!!! That's probably how the "Real Housewives of Atlanta" cast will react after learning Yovanna Momplaisir's returning next season as an official cast member, so get ready for more of her drama involving NeNe Leakes.

Sources close to the production tell TMZ ... producers invited Yovanna to sign on for season 13 as an official cast member. We're told the contracts went out to all the ladies after they filmed the reunion. More on that later.

As for Yovanna's role next season ... our sources say her main storyline for the upcoming season will piggyback off the scandal that erupted during season 12. As diehard 'RHOA' fans know ... the so-called SnakeGate drama roped in the entire cast after the ladies found out Yovanna came on the show as a friend/spy for NeNe, who wanted Yovanna to gather intel to see which of the ladies were trash-talking NeNe behind her back.

The ladies ultimately were led to believe NeNe asked Yovanna to record the conversations. During a trip to Canada, they peppered Yovanna with questions, but she danced around everything. As it turns out, Yovanna never recorded anything and admits NeNe asked her to record the conversations. The cast's reaction ... "so you're a snitch?" Ouch.

Here's "Floribama Shore" star Kirk Medas pulling the ol' "don't you know who I am?" card on cops during his arrest down in Georgia ... and it backfires in spectacular fashion.

Kirk was arrested for disorderly conduct this month in Woodstock, GA ... and he tried to tout his celebrity status as he was being hauled off in handcuffs.

Kirk yells, "I'm on a TV show by the way," as cops slap on a pair of cuffs and curious bystanders laugh as they try to figure out exactly what the hell he's famous for.

Kirk ain't lying ... dude was a regular on the "Jersey Shore" spin-off ... but it seems he doesn't really know his audience. The bystanders definitely didn't know him.

As for the arrest ... cops say they were responding to a call regarding a drunk and disorderly male, later identified as Kirk, who had been kicked outta Pure Taqueria.

Police say bar staff told Kirk he had to hit the road after he threw up, and that's when he allegedly became belligerent. Medas was cited for misdemeanor disorderly conduct.

In the video, you hear bystanders saying cops have their guns trained on Kirk ... but the cops say they just pulled out tasers.

Brody Jenner and Kaitlynn Carter may SEEM like they're rekindling a lost romance, but they're not getting back together ... instead, they're just co-parenting pooches.

Here's the deal ... fans have noticed Brody and Kaitlynn lookin' pretty chummy recently -- BJ was the muscular hunk in the reflection of one of KC's snaps, and they both posted similar photos from the same beach -- but we've learned there's nothing brewing, other than a new dog in the mix.

Sources close to the famous exes tell TMZ ... Brody and Kaitlynn have hung out and bumped into each other a few times, but it's NOT a sign they're getting back together.

When Brody and Kaitlynn were "married" -- it was never a real marriage, there was a ceremony in Indonesia but they never made it legal -- they shared 3 dogs together ... Radar, Tank and Shoey.

Our sources say Brody and Kaitlynn had an agreement when they split ... he would take the dogs full time, and she had visiting rights.

We're told Kaitlynn adopted a new dog, Dash, a couple months ago and wanted to introduce the pup to the pooches she co-parents with Brody, so the exes set up a meet-and-greet for the dogs.

They all hit it off -- the dogs, not Brody and Kaitlynn -- freaking out and playing like good boys and girls.

Brody and Kaitlynn are getting along too ... we're told they said hello and were friendly when the bumped into each other at the beach in Malibu, in what sources say was not a scheduled hangout.

The exes are both moving on, but we're told there's no bad blood ... Brody was spotted quarantining with a UCSB grad and witnesses say Kaitlynn went on a date this week with Amber Heard's ex, Kristopher Brock.

Awesome gesture from Aldon Smith ... the new Cowboys star says he's going to read to kids to help brighten their days -- telling TMZ Sports, "It's just one way I can be a source of help."

Aldon's storytime is all part of a new charity initiative that was put together by WorkForce Software CEO Mike Morini and Jay Glazer's Merging Vets and Players program.

Morini tells us the charity work is pretty simple ... key execs and athletes from all over the country are signing up to read stories and books remotely to children directly affected by the coronavirus pandemic.

Morini says Aldon -- along with a bunch of other athletes like Andrew Whitworth and Robert Griffin III -- jumped at the opportunity when he presented it to them ... saying, "Man, they were all happy to do it."

As for why ... Aldon tells us he understands just how big of an impact the small, charitable act can have on the kids.

"The first thing that went to my head was I was a Tennesee Titans football fan and a Chicago Bulls fan, and you know, I’ve always been a fan of sports and then music, so I loved all kinds of singers and artists," Smith says.

"So, if any of them would have hopped on a phone call or a video call and read a book, it's something I would remember."

Aldon, who was just reinstated by the NFL and will get another shot at pro football for the first time in years, added, "It just goes along with what I’m into and what I’m about."

Ryan Leaf has been arrested for misdemeanor domestic battery in Palm Springs, CA ... TMZ Sports has learned.

The former NFL quarterback was taken into custody around 2 PM PT on Friday, May 22nd.

According to jail records, he was booked for domestic battery -- and bail was set at $5,000.

As of now (the time of this post), Leaf is still in custody.

44-year-old Leaf is listed on his booking sheet as 6'6", 250 pounds with brown hair and blue eyes.

We're working on the details ...

Of course, Leaf was the #2 overall pick in the 1998 NFL Draft -- but his career flamed out fast and his life fell apart soon after.

Leaf has been arrested multiple times for things like drug possession and burglary ... but he had sobered up and became a program ambassador for an organization that runs sober houses in multiple cities including L.A. and N.Y.

He's recently been covering college football for ESPN.

Former WWE star Shad Gaspard was honored Friday during a sunset memorial at the site where he tragically died.

Shad's wife, Siliana, invited lots of friends and family, along with some of his many fans, to pay homage where the beloved star drowned last weekend, after heroically directing lifeguards to help his 10-year-old son out of the churning waters of Venice Beach. Shad's body was found 3 days later.

Shad was universally liked ... a genuinely good man who died a hero.

RIP