Nurse!

Donald Trump's supporters started dropping left and right outside his Arizona rally this week ... fainting while waiting in line to get in -- with many saying extreme heat's to blame.

New video taken outside Dream City Church in Phoenix Thursday is making the rounds online showing paramedics running around the area to help out several people who appear overcome by the heat -- sitting close to 110 degrees.

Check out the clips ... Ben Brown -- a reporter for ABC15 in Phoenix -- posted video documenting the scene, including a clip showing one individual receiving an IV underneath a couple white pop-up tents.

"Vampire Diaries" star Paul Wesley is sharing a positive update on Nina Dobrev after his former costar got into a gnarly crash on her E-bike ... telling us she's going to pull through.

We got Paul and his model girlfriend Natalie Kuckenburg at LAX on Thursday and our photog asked him if he had reached out to his fellow 'VD' alum since her accident.

Paul says Nina told him she's doing better after needing surgery for her injuries ... and he says she's expecting to make a full recovery.

10:02 AM PT -- The player who suffered the medical emergency was reportedly BJ Thompson -- a defensive end who Kansas City selected with a fifth-round pick in the 2023 NFL Draft.

Thompson, 25, played in just one game in his rookie season, logging two tackles.

A Kansas City Chiefs player suffered a medical emergency on Thursday morning ... and now, the team's revealed it's canceled its planned practice in the wake of the scare.

The player has not yet been identified publicly by the organization -- nor has KC given an update on his status ... but, according to NFL Network's Tom Pelissero, it was "a backup defensive lineman" who suffered a seizure in a special teams meeting.

Pelissero reported the athlete went into cardiac arrest ... but, thankfully, trainers raced to his aid, got him in an ambulance, and he's now currently in stable condition.

Taylor Swift rushed to Lady Gaga's aid, an Amazon tribe rushed to porn websites after getting the internet for the first time, and *NSYNC star Chris Kirkpatrick rushed back to the field after a softball injury ... all this and more on TMZ Hot Takes.

Lady Gaga is NOT pregnant despite some wild rumors and on "TMZ Live" Charles and Derek explain why Taylor Swift suddenly got involved.

A friendly soccer match between DR Congo and Morocco this week looked more like a UFC fight -- at least for a brief moment -- 'cause one of the participants on the field socked another with a violent left hook!

It all went down in the second half of the contest when the Moroccans were up 2-1 ... and tensions boiled over following a foul by DR Congo forward Ruth Kipoyi.

You can see in video from the game's broadcast, Morrocan players raced over to Kipoyi to get in her face over the aggressive foul ... but things became heated.

Dustin Poirier is on a long road to recovery after going toe-to-toe with Islam Makhachev at UFC 302 over the weekend ... revealing the extensive list of injuries he sustained during the fight.

"The Diamond" -- who lost to the champ via fifth-round submission on Saturday -- took to X on Wednesday to disclose the damage he's dealing with in the days following the bout ... and it sounds painful as hell.

"Nose is broken bad, rib is broken and my ACL is partially torn," Poirier said minutes ago ... while adding it's all part of "FIGHT LIFE."

Chris Kirkpatrick of *NSYNC was totally Pete Rose'd in the middle of a celebrity softball game ... getting leveled at home plate and breaking his hand in the process -- but somehow, the dude kept playing through the injury!!

TMZ is told ... the musician was one of several big names invited to participate in the Rock 'N Jock fundraiser for Folds of Honor in Nashville on Monday -- and at one point in the friendly competition, CK proved just how tough boy bands can be!!

The moment went down in the third inning ... when local radio host Jeremy Loper rounded third base and headed for home.

Mamie Laverock has a long road to recovery after she was severely injured in a 5-story fall -- this according to her family, who's provided new updates on the tragic situation.

The Hallmark actress' loved ones issued the news on a GoFundMe page for Mamie, where they detailed the extensive surgery she has undergone after her massive fall -- revealing ML has already had 25 hours worth of surgeries. She is expected to have another surgery soon.

They wrote ... "We have nothing but gratitude for the doctors and nurses who have been exemplary in her care since May 26. Mamie is 'doing well' comparatively to when she arrived. Doing well because she has survived these extensive surgeries. She is enduring tremendous pain and continues to not give up."

Justin Timberlake's always looking out for his fans ... slamming the brakes on his show in Texas to point out one who seemingly needed medical assistance.

The singer-songwriter hit the stage at the Moody Center -- an arena at the University of Texas at Austin -- Saturday night ... and, during his show, he stopped and shouted for the house lights to come up.

Check out the video of the incident ... Justin apologizes to the crowd for pausing the show before pointing at a fan he says is about five rows from the stage who desperately needs assistance.

Caitlin Clark and the Indiana Fever got the win against the Chicago Sky on Saturday but boy, things got physical .... including a cheap shot that sent the number one pick to the hardwood, drawing applause from rival Angel Reese!

It was a full house at the Gainbridge Fieldhouse in Indianapolis for the first WNBA match-up between Reese and Clark ... and they picked up right where they left things off in college!

The game was intense, and the Fever was thrilled to come away with their second win of the season. Clark wasn't happy with the body check from Angel's teammate, Chennedy Carter.

KTLA weatherman Mark Kriski is making strides on his recovery journey after experiencing a mild stroke earlier this week ... so says his spouse.

Kriski's wife Jennifer Gould shared in an X post Friday, "@MarkKriski is moving from Neuro unit to physical therapy unit today! 📷📷 @KTLAMorningNews @KTLA #fighter #thankyou."

The news undoubtedly comes as a relief for KTLA viewers -- and even Mark's colleague Glenn Walker chimed in under Jennifer's post, expressing his joy at the positive update.

Fans looking forward to the Jake Paul vs. Mike Tyson fight will have to wait a bit longer -- the July 20 bout has just been postponed following the boxing legend's recent airplane medical scare.

Jake's Most Valuable Promotions just made the announcement ... saying after meeting with medical professionals over his ulcer flare-up on Thursday, Mike was told it was best to do "minimal to light training over the next few weeks."

Jake and Mike both agreed it was best to push the event back ... as they both want equal training time leading up to the fight.

Taylor Momsen -- the frontwoman for The Pretty Reckless band and one-time "Gossip Girl" star --must be feeling pretty rock 'n' roll right now ... 'cause she got bitten by a bat onstage.

Taylor -- who came up as an actress on 'GG' and as Cindy Lou Who in "How the Grinch Stole Christmas" -- was performing while opening for AC/DC in Spain, when a wild bat flew down and bit her on the leg.

The singer didn't even realize what had happened ... until members of the audience started pointing at her leg -- where the bat had latched on. The video is wild ... you gotta see it -- not to mention the aftermath.

Darryl Strawberry's back to feeling 100 percent --- and he couldn't be happier about it ... revealing to TMZ Sports this week he nearly died from the heart attack he suffered in March.

The Mets legend opened up to us about his medical scare while out in NYC ... and he said things got so bad with his heart at the time of the emergency, doctors couldn't believe he survived.

"My heart was pumping at 40 percent," said Strawberry, who described the heart attack as a "massive" one. "So, there was a lot going on. There was not a lot of blood flowing through my heart at that particular time."

Bill Moseley -- known for 'The Texas Chainsaw Massacre' franchise -- got an unwelcome scare of his own last week after being slammed into by a cyclist ... who apparently took off.

The actor's rep tells TMZ ... it all went down in Raleigh, NC Friday -- where the horror icon was expected to attend Carolina Fear Fest ... but shortly before the event kicked off, he was hit from behind during an afternoon walk, leaving him with 4 fractured ribs and a fractured pelvis.

We're told Bill was walking behind his hotel along a dual pedestrian-bike path and that a dude came flying down the lane and ran right into him from behind ... at a speed which we're told was about 30 MPH. Rather than stop to help, Bill's rep says this man bolted ... fleeing the scene.

Bill, as a result, was left writhing in pain ... and we're told help was eventually called for him ... and he was transported to a trauma hospital, where he underwent multiple CT scans.

In the end ... Bill suffered multiple pelvic and rib fractures -- something he noted himself on IG, posting a couple shots of himself in a hospital gown, and eventually being wheeled out in a wheelchair. While what happened to him was serious ... he's keeping his spirits up.

As for the biker who hopped back on his bike and rode off, Moseley -- who's also starred in 2007's "Halloween" threw in a horror character reference, saying ... "And here I thought Jason packed a punch!"

Bill's since been discharged from the hospital, and has a 6-week rehab stay ahead of him, and has been ordered by docs to avoid putting weight on his left leg at all costs.

The folks behind Carolina Fear Fest also confirmed Bill's expected to make a full recovery, and have announced anyone who purchased a photo op with Bill will receive an immediate refund.

Bill's undoubtedly loved and respected in the horror community. In addition to starring in the 1986 sequel to "The Texas Chainsaw Massacre," he also appeared in "Texas Chainsaw 3D" in 2013 as Drayton Sawyer.

He's also a staple in Rob Zombie's "Firefly" trilogy, among countless other horror projects solidifying his status as a genre icon.

10:10 AM PT -- Jake Paul is shutting down any online chatter about their fight being called off in the wake of Mike Tyson's health scare.

Jake says people "love to make s**t up," but reassured fans the July 20 bout is still a go. As he put it, "nothing changed."

Mike Tyson is recovering from an ulcer flare-up he suffered while flying cross-country -- and it was so bad, airline staff had to put out the call for any medical professionals on the plane to come forward.