Jiu-jitsu students grappling on a mat.

THIS is the horror moment a jiu-jitsu student was left paralysed from the neck down after being slammed by his black belt instructor.

Jack Greener, a beginner white belt, was seen receiving horrific injuries after his instructor put on a move that struck his neck.

Jiu-jitsu students grappling on a mat.
Moment Greener’s trainer put on a move that struck his neck.Credit: Instagram
Jiu-jitsu students practicing.
Greener was seen on the floor after receiving horror injuruiesCredit: Instagram
Man in hospital bed with medical tubes.
The horrific accident crushed his cervical vertebrae, effectively paralysing his entire body below the neck

Footage shows Greener pitting against his instructor, dubbed “Sinistro”, inside a training facility.

The beginner was on all fours when his instructor flipped him forward before twisting his head and neck.

Greener immediately lost control over his body and fell to the ground.

He was rushed to the hospital – just days before he was supposed to graduate from college in 2018.

The horrific accident crushed his cervical vertebrae, effectively paralysing his entire body below the neck.

Greener was forced to spend months in the hospital, recovering from multiple strokes as a result of his injuries, according to the New York Post.

He subsequently filed a lawsuit against the Del Mar Jiu Jitsu club in San Diego, attributing his injuries to his instructor, Iturralde, due to the latter’s “dynamic, aggressive grappling style.”

Greener, now a mountain climber and a popular motivational speaker, was first awarded $56 million by a San Diego jury in 2023.

Rahul Ravipudi, one of Greener’s attorneys, remarked: “[The judgement] represents a significant legal success not just for our client, but also for athletes who suffer injuries across California by confirming that sports instructors and facilities can be held liable when they inappropriately elevate risks beyond those naturally present in the sport.”

BJJ icon Rener Gracie, who testified as an expert witness in the case, commented: “The black belt instructor executed a technique that imposed his full body weight on Greener’s neck, causing him to immediately become limp and lose all limb function.”

It comes after a champion martial artist tragically died after a horrific collapse in the ring.

Mohit Sharma, 21, was fighting in the second round of a university wushu tournament on Monday in India.

People immediately rushed to provide assistance, and medics were called.

Sharma, though, could not be revived after a reported suspected heart attack.

According to the Indian Express, he was taken to the on-site medical centre then transported to a district hospital.

But the young boxer sadly passed away as he was declared dead on arrival at Kharar Government hospital on Monday evening, it was later confirmed.

Meanwhile, a mixed martial arts fighter died days after collapsing during a training session.

Jiu-jitsu student on the ground during a training session.
Greener was forced to spend months in the hospital, recovering from multiple strokes as a result of his injuriesCredit: Instagram

Zach Doran was sparring at his local gym when his heart suddenly stopped.

The 18-year-old spent 10 days in a coma before his parents Jason and Tami made the “tough” decision to turn his life support machine off.

“He literally fought to his death,” his dad, a teacher and American football coach, said.

“He was doing a sparring session and during round seven or eight, he just collapsed.

“They had thought that he had taken a kick to the chest or a blow to the head, but someone was recording his bouts and it was none of that.

“You could tell he was getting tired and just folded over.”

The “super healthy” teenager, who had been an MMA fighter for two and a half years and was captain of his Varsity American football team, had no underlying health conditions.

But his girlfriend Libby Gilmore, 18, believes energy drinks contributed to Zack’s “shock” passing.

The sportsman reportedly “always had one” before going to the gym or an MMA session, as well as a “pre-workout” – a supplement designed to enhance energy.

You May Also Like
Chicago crime: Suspect Merlin Lu, 21, charged with hate crime, arson for burning cross in Grant Park, police say

Chicago Police Charge 21-Year-Old Merlin Lu With Hate Crime, Arson After Cross Burning in Grant Park

CHICAGO (WLS) — A 21-year-old Chicago man is facing a series of…
Evanston's Juneteenth parade to honor legacy of Opal Lee with granddaughter, Dione Sims, as grand marshal

Evanston’s Juneteenth Parade to Honor Opal Lee’s Legacy, with Granddaughter Dione Sims Named Grand Marshal

EVANSTON, Ill. (WLS) — Evanston’s yearly Juneteenth parade is set to start…
Luigi Mangione bails on psychiatric defense in UnitedHealthcare CEO assassination case

Luigi Mangione Drops Psychiatric Defense in UnitedHealthcare CEO Assassination Case: What It Means for the Trial

Mangione to use ‘psychiatric defense’ in CEO murder trial, judge says Luigi…
Austin Metcalf’s dad supported Karmelo Anthony judge’s hard line on cameras

Austin Metcalf’s Father Backs Judge’s Tough Stance on Cameras in Karmelo Anthony Case

FRISCO, Texas — Jeff Metcalf, the father of Austin Metcalf, said he…
US and Iran sign initial deal to end war, ease sanctions and open strait as nuclear talks continue

US-Iran Initial Deal Signals Path to Ending Conflict, Easing Sanctions and Reopening Strait

WASHINGTON — President Donald Trump on Wednesday signed an accord with Iran…
Guards at 'Alligator Alcatraz' beat, pepper-sprayed detainees, lawyer says

DHS Evacuates All Detainees From ‘Alligator Alcatraz’ as Hurricane Threat Forces Emergency Move

All detainees housed at “Alligator Alcatraz,” a migrant detention center in the…
South Carolina personal trainer goes missing, last spotted walking toward wooded area

SLED Joins Investigation After Body Found Matches Description of Missing South Carolina Personal Trainer

South Carolina’s lead investigative agency, the State Law Enforcement Division (SLED), joined…
Elon Musk demands prison for politicians who 'turned a blind eye' to grooming gangs as new report released

Elon Musk Calls for Jail Time for Politicians Who Ignored Grooming Gangs, Explosive New Report Reveals

Elon Musk thrust Britain’s grooming gangs scandal back into the international spotlight…
From bear hugs to handshakes: How India lost its edge with Trump while Pakistan quietly gained ground

India’s Trump Reset Falters as Pakistan Quietly Gains Ground in US Ties

President Donald Trump and Indian Prime Minister Narendra Modi met in person…
 'Project Runway' Season 22 trailer unveils record 22 designers, Tyra Banks' return and star judges 

Project Runway Season 22 Trailer Reveals Record 22 Designers, Tyra Banks Return and All-Star Judges

LOS ANGELES — Twenty-two designers are heading into the workroom for Season…
Florida couple sues fertility clinic after allegedly giving birth to someone else's baby

Florida Couple Settles With Biological Parents in Alleged IVF Embryo Mix-Up Case

A Florida couple who say a fertility clinic mistakenly implanted the wrong…
Iran regime power players may eye Russia in Assad-style escape as US talks falter: expert

Iran Deal Architect Warns: Tehran May Walk Away if Trump Fails to Deliver on US Promises

Iranian Parliament Speaker and senior negotiator Mohammad Bagher Ghalibaf said Tehran will…