Nurse!

1:47 PM PT -- Flair is out of surgery and resting, a rep for WWE tells TMZ Sports.

Unclear how the surgery went but we're told Ric's family is by his side and they're waiting to meet with doctors.

Ric Flair is in a medically induced coma and is preparing for surgery ... a rep for the WWE tells TMZ Sports.

The 68-year-old wrestling icon was admitted to the hospital early Saturday morning and the situation has gotten more serious.

We're told Flair is set to undergo a procedure momentarily, though we're not being told what the procedure is ... though Pro Wrestling Sheet is reporting that it's a heart related issue.

Flair's rep had previously asked for thoughts and prayers for the Nature Boy.

Story developing ...

11:59 PM PT -- A spokesperson for 20th Century Fox tells us, "We are deeply saddened by the accident that occurred on the set of Deadpool 2 this morning. Our hearts and prayers are with the family, friends and colleagues of our crew member during this difficult time."

A stunt person was killed on the set of "Deadpool 2" when a motorcycle stunt went terribly wrong.

The rider, who was female, went airborne in Vancouver Monday morning during filming for the movie. Her bike crashed through the glass of a ground-floor studio inside Shaw Tower near Jack Poole Plaza. Witnesses say she never applied the brakes. Ryan Reynolds tweeted about the tragedy.

The rider -- whose identity is being withheld -- was pulled from the crash site and taken to the hospital by ambulance. Police taped off the area, and an investigation is underway.

It's the second major mishap involving stunts in as many days. Tom Cruise was badly injured during a failed stunt on the set of "Mission: Impossible 6."

Story developing ...

Pro wrestling icon Ric Flair has been hospitalized -- and it sounds serious.

The Nature Boy's reps confirmed the 68-year-old was hospitalized over the weekend -- but Legacy Talent Agency insisted it was for "routine monitoring" and there was "no reason to panic."

But things changed by Sunday night, when the reps posted, "We need your prayers, positive energy, and well wishes for our Living Legend as he is dealing with some tough medical issues."

The agency has not said exactly what those medical issues are.

Flair was reportedly admitted to the ICU with "heart-related issues," according to ProWrestlingSheet.com.

We just saw Flair out back in May -- and he told us not to let terrorists scare them away from sporting events.

He's also been campaigning for his friend Kane, who's running for mayor in Tennessee.

Tom Cruise's injuries on the set of "Mission Impossible 6" might be more severe than previously thought ... 'cause he tried and failed his building stunt jump at least twice.

TMZ has obtained a second video showing Tom Sunday attempting to clear a building with one giant hop during filming for "MI:6" ... and like the first clip, he fails here too -- this time perhaps more miserably.

The hit against the side of the building sounds crushing -- and considering he tried this at least twice -- it raises questions as to how seriously he's hurt ... and whether this might affect the rest of production.

We've placed a call in to Tom's reps and Paramount Pictures ... so far no word back.

Drag-On -- one of the original members of the Ruff Ryders label -- had a rough time at an outdoor concert ... ending up in the ER.

The rapper was performing in Atlantic City late last week, went into the crowd -- which is where the video starts -- and complained he was short of breath because he had been smokin' weed. He composed himself and attempted to rap ... but it was a struggle.

Drag-On tried making it back on the stage but fell to the ground ... medics had to come to his aid and he left in an emergency vehicle and went to the ER.

Bodybuilding superstar Rich Piana had 20 bottles of steroids in his home at the time of his medical emergency ... this according to the police report obtained by TMZ Sports.

Cops were called to Piana's Florida home at 1:30 PM on Monday after the 46-year-old social media sensation suddenly collapsed in his bathroom while getting a haircut from his girlfriend, Chanel.

Piana's girlfriend says she tried to catch the former Mr. California bodybuilding champ when he collapsed but couldn't due to his massive size and weight. Chanel told officials Piana struck his head during the fall.

The 911 operator instructed Chanel to perform CPR but she was unable to revive him.

When emergency personnel arrived, paramedics found crushed up white powder on a table along with a credit card and straw and decided to give Rich 2 doses of Narcan (often used to treat opiate overdoses) to try and revive him.

Chanel told responders Rich had battled opiate addiction in the past but she believed he was clean.

Rich never regained consciousness and was transported to a nearby hospital where he was placed into a medically induced coma.

The report notes that police found bottles and bottles of testosterone in the home, 20 in total. Chanel said Rich is an admitted steroid user who's been juicing for more than 20 years.

Chanel also noted Rich had suffered from a slightly enlarged heart at one point in his life -- but didn't know if that contributed to the medical emergency.

Uber is being sued after one of its driver's allegedly beat up a passenger and then later showed up at his home to beat the dude up again, this time with a metal rod.

David Riordan says he ordered the Uber ride home from a 2016 Christmas party in Chicago's Wicker Park. He says he was picked up in a Honda Accord by a driver named Munstr Abuseimi, who became aggressive, kicked Riordan out of his car, and then got out and punched him several times.

Riordan says he went to a friend's house after the attack, where he contacted Uber to report Abuseimi, and about an hour later ordered another Uber to take him home.

But Riordan says when he got to his house, Abuseimi was there waiting and attacked him with a metal rod from behind with the fighting words: "Don't f*** with Uber drivers!"

Riordan says the ambush left him with a fractured left orbital, bleeding in his brain, concussion and a dislocated jaw with nerve injury. He says he also had to get 9 stitches. He's suing Uber because he thinks the company is prioritizing profits over rider safety by not sufficiently screening its drivers.

Riordan's lawyer, Ian Alexander of Goldberg and Goldberg, tells us they've tried to settle the case with Uber, but they've been unresponsive.

"Bachelor in Paradise" star Justin Reich never saw it coming -- a downhill bump caused him to slam so hard on the ground he blacked out twice with devastating injuries.

Justin -- who appeared on 'BiP' two seasons ago and on Kaitlyn Bristowe's 'Bachelorette' season in 2015 -- tells us he was in his hometown of Chicago 2 weeks ago riding his longboard when, out of nowhere, a bad turn flung him off his board.

Check it out ... Justin says he woke up in an ambulance where, again, he blacked out. The injuries are pretty gnarly -- a collapsed ear canal, concussion and fractured skull. He was in the ICU for 2 days but is scheduled to return next week.

The big worry? Possibly permanent loss of hearing ... and in case you're wondering ... he copped to not wearing a helmet.

Ouch.

Paige VanZant won't let a massive bloody wound keep her from fighting -- she's already stitched up the gash on her foot and got back on her grind.

The UFC superstar opened up a gnarly hole in her foot on Wednesday -- but one day later, she was back working out ... hitting a set of crunches with a fresh set of stitches.

VanZant is rumored to fight Jessica Eye at UFC 216 in October -- and at this point, it doesn't appear she's gonna let the injury keep her out of the Octagon.

The "Rica Famosa Latina" star who got her forearm slashed open by her co-star confirmed our Spanish translation of an insult she hurled moments after the slicing ... and yes, "puta" does mean "whore."

We spoke to Luzelba about the fight last Thursday between herself and Patricia, during which Patricia broke a glass on Luzelba's arm and cut it wide open ... leaving behind a flap of skin and tons of blood.

30 stitches later ... Luzelba's doubling down on her insult right after when she said to Patricia "Estas sola por puta."

Sure enough, it means what we said it means. De nada.

Two of the "Rica Famosa Latina" stars got into a massive brawl ... ending with one of the cast members losing a chunk of her forearm.

The violent incident went down Thursday night during filming at WeHo Bistro ... as Luzelba and Patricia discussed rumors Patricia slept with her sister's husband. The conversation's in Spanish, so trust us, entendemos todo.

The chat actually seemed civil ... until Luzelba threw a glass of water at Patricia. Not to be outdone, Patricia breaks a glass on Luzelba's right forearm ... let's just say the video isn't for the faint of heart, and the injury required more than 30 stitches.

For good measure ... Luzelba tells Patricia, "You're lonely because you're a whore."

The show airs on Estrella TV in September ... and TMZ's Not Ricos, Not Famosos will be glued!

Bella Hadid was brought to her knees ... in the most unflattering way possible.

Bella was leaving Cipriani Wednesday night in NYC ... doing what super models do -- strutting her goods down some stairs in knee-high boots as paps snapped and flashed away.

All seemed fine ... until Bella slipped on the last step and ate it. Pretty clear she was embarrassed by the whole thing -- turning her back and covering her face. Even more embarrassing? Her boots say "FOR WALKING" on them.

But don't shed any tears for her ... she got to party with her fave baddies -- Kendall Jenner and Hailey Baldwin.

Oscar Pistorius was transported from his prison cell to a hospital in South Africa early Thursday morning after reportedly complaining of chest pain -- but officials now say he's okay.

The disgraced Olympian is serving time at Atteridgeville prison for murdering his girlfriend, Reeva Steenkamp, in 2013.

Prison officials have told the media, "We can state that offender Oscar Pistorius was taken to an outside hospital facility this morning for a medical examination, and is expected back in the facility later today.”

There's no doubt Macklemore is lucky to be alive when you see what's left of his Maybach after a head-on collision with an alleged drunk driver.

TMZ obtained these pics of the wreckage -- Mack's 2016 Mercedes-Maybach is sitting in a tow yard now with tremendous damage to the front bumper, hood and engine. His driver and passenger side airbags both deployed.

We broke the story ... Macklemore was smashed by a pickup truck Friday night in Langley, Washington but walked away unscathed. His 2 passengers also escaped serious injury. Pretty good ad for Benz.

Mariah Carey's bodyguard dragged a guy out of the backstage area ... who claims he was a credentialed journalist -- but Mariah's team is calling BS.

James Pablo tells TMZ he was backstage at Mariah and Lionel Richie's show Thursday night at San Diego State's Viegas Arena to interview their opener. He says he had a press pass that was attached to a lanyard around his neck, and had every right to be there.

James says he saw Mariah backstage, and asked to take a pic with her -- which he says she OK'd. When he tried going in for the selfie, James says her bodyguard allegedly yanked his lanyard -- which was still around his neck -- and dragged him outside.

Once he was out, James tracked down cops and filed a police report ... saying he wanted to press charges. Law enforcement sources confirm a battery report was taken and the investigation is ongoing.

As for Mariah ... sources close to her tell us James was an obsessed fan who snuck backstage with a fake badge. Her bodyguard pulled James away when he saw him grab her dress and feared he was going to attack her.

James insists he had a valid press credential to be backstage, and denies grabbing Mariah's dress.

Venus Williams' car crash was a bloody, chaotic scene ... according to frantic 911 callers.

TMZ obtained the audio, and one witness emotionally described the accident with glass everywhere, and at least one person, Jerome Barson, left badly bleeding from his arm and leg. He died 2 weeks later from his injuries.

The caller also says Venus was able to get out of her car and walk, while Jerome and his wife, Linda were badly injured and unable to exit their vehicle. She eventually recognizes Venus, and says "she was unfortunately at fault."

As we first reported ... the attorney for the Barson estate -- which is suing Venus for wrongful death -- says vehicle data from Venus' SUV shows she went from 0 to 19.9 MPH in about 4.2 seconds as she tried to clear the intersection.

Cops on the scene said Venus was at fault in the accident, but did not cite her -- as seen in body cam footage.