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Another day, another enemy for LaVar Ball ... this time it's NFL superstar J.J. Watt who roasted Ball over the ZO2s ... saying they suck, are overpriced ... and most importantly, Watt's shoes are better.

Watt took to Twitter to announce the release of his $99 Reebok training shoe and took the time to call out Ball when he did it ... posting a not-so-subtle shot at the Big Baller Brand boss.

"400 dollars less than some shoes on the market and 100% more effective" ... "And I actually wear them."

LaVar and Lonzo's sneakers retail for $495.

Lonzo's been killin' it in the NBA Summer League ... but only since he stopped wearing the ZO2s ... and switched to Kobe's Nikes and Harden's Adidas kicks.

Shots fired.

2:18 PM PT -- It appears Twitter has now also removed the nude photos of Chyna from Rob's account.

It seems Instagram has had it with Rob Kardashian's revenge porn against Blac Chyna, 'cause they just shut down his page.

Rob tweeted Wednesday ... "Since Instagram shut me down everyone peep my twitter lol" ... and then proceeded to post the same nudes of his ex on Twitter.

As we reported ... Rob's on a social media rampage against Chyna after he allegedly caught her cheating, posting naked pictures of her as well as text messages from her and her alleged side pieces.

It's unlikely Rob will be prosecuted under California's revenge porn law, because prosecutors must show the victim suffered emotional distress ... almost impossible to do since Chyna "liked" the pics on Instagram.

Probably won't be long now 'til @Jack and co. take him down on Twitter too.

"F**k LaVar Ball" -- Joel Embiid.

That's exactly what the Philly 76ers star proclaimed on Instagram Live Tuesday ... just a few days after the Big Baller said Sixers players should stay off Twitter and get in the gym.

ICYMI -- Embiid and fellow Process Truster Ben Simmons tweeted their opinions of BBB during the NBA Draft ... with Embiid asking Simmons to dunk on LaVar's son, Lonzo.

LaVar wasn't havin' it ... telling 97.5 The Fanatic, "when you don’t win and don’t even make the playoffs, and don’t even stay on the court long enough, that’s the best thing you can do is tweet, make some stuff."

"These guys ain’t played a game, always hurt, and at the bottom of the totem pole," Ball added at the time.

"So guess what, get your asses off the goddamn Tweeter, and get in the gym."

Here's the whitest clip you'll see all day ... Orel Hershiser rapping along to Eminem's "Lose Yourself" while driving around in a tie.

GET IT, OREL!!!

The legendary Dodgers pitcher was driving around with his pal and fellow Dodgers announcer, Joe Davis, when the Em track came on the radio.

They snapped into rap mode. They focused. They tried REALLY hard to rap along with the words.

So, did Orel Hershiser capture the moment? Or just let it slip?

Watch the clip ... and lose yourself.

Dr. Terry Dubrow thinks Donald Trump not only acted un-presidential by calling out Mika Brzezinski for allegedly showing up at Mar-a-Lago on New Year's Eve and bleeding from plastic surgery ... he says it's flat-out body shaming.

The "Botched" star makes it clear ... Trump has no evidence Mika had plastic surgery. What's more, he says someone showing up bleeding from the face is dealing with issues other than plastic surgery.

On all counts, Dr. Dubrow joins the chorus slamming Trump for his tweets.

Even Kellyanne Conway has NO defense for President Trump's verbal attack on Mika Brzezinski ... because she tried every possible tactic to avoid the topic.

We got Trump's Counselor Thursday morning on Capitol Hill -- just a few hours after his brutal tweets about Mika. We barely got the question out when she launched into every pivot in her arsenal.

Her agenda for the day, her "bipartisan hug" with Rep. Debbie Dingell ... and when an elevator couldn't come quickly enough, she tried the ole ... how's the weather tactic.

Yeah, "It's a gorgeous day here" ... isn't gonna make this one go away.

Case in point, Speaker of the House Paul Ryan took issue with trump's "tone."

Mika Brzezinski took plenty of jabs at President Trump Thursday on "Morning Joe" ... and it appears this is what sparked his Twitter attack.

Mika and her co-host/fiance, Joe Scarborough, went off on Trump over several topics -- from the healthcare bill to "teensy hands." Shortly thereafter, POTUS fired off his tweets about "low I.Q. Crazy Mika" and "Psycho Joe."

The reality is Joe and Mika were just doing their show. It's not like this was their first time being critical of the Donald. Maybe it was just his first time watching, but the news desk banter doesn't seem to justify the President's personal and petty response.

Jim Irsay's Twitter followers got a very x-rated surprise -- a spread eagle vagina pic!

The photo went out on the Indianapolis Colts owner's Twitter page early Thursday morning -- but was promptly deleted 12 minutes later ... which is an eternity on the Internet.

The question ... was it an innocent mistake or was he actually HACKED?!

Neither Irsay nor the Colts have issued an official statement yet. We're guessing it's just a matter of time at this point.

In the meantime, change your password, Mr. Irsay.

7:08 AM PT -- An MSNBC spokesperson tells TMZ, “It’s a sad day for America when the president spends his time bullying, lying and spewing petty personal attacks instead of doing his job.”

If Donald Trump were a doctor this could be a HIPAA violation ... calling out an MSNBC anchor and claiming she was bleeding profusely from a facelift.

It's shocking ... the President of the United States fired off the tweet Thursday, saying Mika Brzezinski and fiance/co-anchor Joe Scarborough were at Mar-a-Lago New Year's Eve and he noticed blood and somehow determined it was a reaction from a facelift.

Trump also called her stupid, claiming she has a low I.Q. and Joe is a "psycho."

Mika just fired back -- somewhat obtusely -- with a pic of a box of Cheerios, with the words, "Made For Little Hands" on the box.

A spokesman for NBC also tweeted:

Leslie Jones ain't putting on the Ritz -- she's pissed about the service she got at L.A.'s Ritz-Carlton, and fired back at the hotel the same way Kanye West did George Dubya.

Fresh off hosting the BET Awards in downtown L.A. -- right next to the Ritz -- Leslie implored her 693,000 followers to NOT stay there, claiming "THEY DONT LIKE BLACK PEOPLE!!"

Unclear what exactly happened to set her off, but the Ritz responded to Leslie's tweet with ... "@Lesdoggg We're sorry to hear this. We pride ourselves on providing excellent service to all. Please DM us & we'll look into this right away."

Hillary Clinton jumped off the political sidelines and fired a shot at Republicans over the new healthcare bill ... saying, in not so many words, it's gonna kill Americans.

The former candidate said the GOP will be "the death party" if they pass the proposed healthcare measure. In her tweet, she referenced an article citing Harvard researchers. Their study says the Senate bill could result in "18,000 to 28,000 deaths in 2026."

Aaron Carter ended up in the hospital, apparently for exhaustion, following a concert -- the cherry on top of an awful night, which he says included some major body shaming.

The singer performed at the HOT 107.9 concert in Syracuse Thursday night and afterward said he was headed to the ER for a checkup ... something about staying strong following a string of shows.

He also revealed he had a run-in with a fan who said he looks like he has cancer. Aaron says the fan was talking to someone else, and didn't realize he was listening, but added ... he needed to eat 5 cheeseburgers because it looks like he's dying.

Aaron took it hard, saying ... "They literally won't stop bullying me" and "I'm sorry I'm not fat enough."

Miles Teller blames a San Diego bar for overserving him and putting him in a state that got him arrested.

This video was shot at PB Shore Club ... the place Miles and his buddies were partying Saturday night. TMZ broke the story ... Miles got so drunk he attracted the attention of a cop who saw him on a sidewalk, nearly falling into traffic. Police say Miles was uncooperative and they ended up arresting and booking him for public intoxication.

Late Monday he simply said, "I blame Shore Club" -- insinuating the bartenders shoulda cut him off.

Jada Pinkett Smith is pissed off about "All Eyez On Me" and how it portrays her relationship with Tupac ... calling the movie, "deeply hurtful."

Jada, who clearly just saw the movie, is taking issue with several scenes, including one where Pac reads her a poem. She says, "I didn't know that poem existed until it was printed in his book."

She also says they never fought backstage at any of his shows ... as they do in the movie.

Jada and Tupac met in high school in the mid '80s. She's described him as one of her best friends, and although they kissed once ... she says it was never a romantic relationship. Jada was even the inspiration for some of his poems that were published after his death.

She does praise Demetrius Shipp and Kat Graham -- who play Pac and Jada -- for their performances ... but definitely shades the screenwriter.

Donald Trump wants Hillary Clinton to feel the same heat he is over Russia ... and claims she smashed phones and hid evidence which he thinks rises to the level of obstructing justice.

The Prez insinuated the Clintons have their own ties to Russia that should be investigated ... then followed up with a blistering tweet about 'Crooked H' destroying phones, emails and Bill Clinton influencing the former U.S. Attorney General.

A popular motivational speaker desperately wants the right to use the n-word freely, and he made a bizarre plea to do so while hosting his Internet show.

Grant Cardone -- a best-selling author with 1.1 million Facebook followers -- was in the middle of interviewing entrepreneur Patrick Bet-David a couple weeks ago. The conversation shifted to Miami's diversity when, out of nowhere, Grant straight-up said he wants a stamp of approval to use the n-word.

Important to note, Cardone wasn't following in Bill Maher's footsteps ... this aired before Maher's ill-fated slavery remark.