BJJ Black Belt Dies During Training in Tijuana — Training Partner Detained

Francisco Martínez Hernández, a 59-year-old black belt, showed up to evening class at Villegas MMA in the El Dorado neighborhood of Tijuana on April 19 like he had done countless times before. He rolled with a training partner named Joshua Isaac Suarez Briseño, 27. Somewhere in the middle of that roll, around 6:51 PM local time, Suarez Briseño locked up an arm triangle. Francisco went to sleep. He didn't wake up.

Mexican police detained Suarez Briseño at the scene. In Mexico, when a person dies during a combat sports session, the applying partner gets taken in. Standard procedure. He was later released. Gym owner Mike Villegas offered what sounds like a community consensus before any autopsy had come back, telling reporters there was "something more after the choke, which I say was the cardiac arrest."

There it was. The explanation. Bolted together before anyone had time to ask uncomfortable questions. It must have been a cardiac event. The choke didn't kill him. He had something else going on. We always have this story ready.

The reflex

Ask any BJJ gym how safe the choke is and you will get the same answer, delivered with the same confidence. Blood chokes are the gentlemanly finish. They cut off circulation, not air. You pass out, you wake up, you are fine. Joint locks are the real danger. Chokes are a polite handshake.

That is the story. Now look at what we had done with it.

Triangle setups got applauded at open mat. Purple belts showed up to class with visible bruising on their necks and laughed about it. The guy who cranked a rear naked the second the tap registered got called intense instead of dangerous. Everyone had a story about the time they saw flashing lights for a day after a roll and didn't tell anyone because they didn't want to sound soft. We told new students the choke was the safest finish in the sport, and then we spent the next ten years absorbing small bits of evidence that it isn't always.

What a choke actually does

A blood choke does exactly what the name says. Your carotid arteries run up the front of your neck and feed your brain. A properly set rear naked, arm triangle, or guillotine compresses those arteries against the vertebrae behind them. Within seconds, blood flow to the brain drops. You lose consciousness. In most cases the blood returns the moment the pressure releases, you wake up confused, and that was the end of it.

Most cases. Not all.

The part nobody mentioned at the safety briefing was that arteries handle direct compression better than they handle shearing force. When you got choked and your head was turned, which was what happened in essentially every triangle and arm triangle in the sport, you weren't just compressing the artery. You were torquing it. If the inner lining had plaque or damage from age, that shearing force could tear it.

The medical name for that tear is carotid artery dissection. It is documented in the literature as a BJJ injury. A 2017 case report in the Journal of Stroke and Cerebrovascular Diseases followed a 29-year-old BJJ athlete who suffered a stroke after being choked. A 2022 review in the American Journal of Emergency Medicine catalogued ten cases of cervical arterial dissection and ischemic stroke among BJJ practitioners. These weren't theoretical. They were the kind of case reports that ended training careers and sometimes lives.

The age bit nobody wanted to talk about

Francisco Martínez Hernández was 59 years old.

The standard BJJ choke safety argument had been built for healthy 25-year-olds. It wasn't built for people whose arteries had decades of plaque buildup. It had nothing to say about undiagnosed heart disease. It had even less to say about the guy in your 7 PM class who took a beta blocker every morning and didn't mention it because he didn't want to be treated like a grandpa.

The average age in a BJJ gym was climbing. Hobbyist jiu-jitsu had exploded in the 2010s, and those hobbyists were now in their forties and fifties. A lot of them came to the sport specifically as an alternative to running. Their knees were shot. They wanted something lower impact. They showed up in their clean gis, they rolled hard, they tapped clean, and everyone treated them exactly the same as the 22-year-old in the next spot.

The same arm triangle that put a 22-year-old to sleep did something else entirely to a 59-year-old's cardiovascular system. Sometimes that something else was fine. Sometimes it wasn't. And when it wasn't, we called it a cardiac event and moved on.

What long-term practitioners actually reported

If you'd been in the sport long enough, you knew what was true.

Someone at your gym had been choked so hard they saw flashing lights for hours. Someone got caught in a triangle and came out with balance problems that lasted two days. Someone said "I had a weird headache after that last roll" and never went to a doctor. Someone had woken up from a choke and asked the same question three times in a row before anyone thought to check on them. We didn't report these. We didn't even write them down. They became stories we told each other between rounds. Remember when Tommy was out for twenty seconds instead of five? Remember when Dave's pupils were different sizes for a week? Good times.

The gap between what we told new students about choke safety and what long-term practitioners actually experienced was enormous. And we had built an entire gym culture around pretending that gap didn't exist.

What the gym said

Villegas MMA released a statement lamenting what had happened. They said it was a freak occurrence. They said Suarez Briseño did nothing wrong. They said Francisco didn't tap because he didn't have time. They said the cardiac event was the real cause. Most practitioners reading this were nodding along because every one of those statements was reasonable.

All of that may have been true. Cardiac events do happen during exertion. He was 59. A hard roll was the trigger, not the cause. This was a reasonable position. It was also the position that let the rest of us keep training exactly the way we had been training.

The thing that didn't happen: the gym didn't change how they taught chokes. Nobody added a screening questionnaire for new students over 50. The instructor didn't pull the older guys aside and say "hey, let's talk about how you want your rolls to go." The community did not have a real conversation about whether blood chokes should be applied at full intensity against people whose vascular health nobody in the room knew anything about.

The punchline

Francisco Martínez Hernández was a black belt. Most of us won't be. He earned that belt knowing the risks, whatever he thought the risks actually were. His training partner did nothing illegal, nothing unusual, nothing that wasn't happening at 10,000 gyms that night.

That was the problem. The safest finish in the sport, the one we bragged about, was safe enough that we had stopped noticing what it actually did to the human body. Every once in a while, at a gym in Tijuana or a gym in Ohio or a gym five minutes from your house, the human body reminded us.

Then we said cardiac event, and we put on our gis, and we kept rolling.

This post was generated by AI. Sources are linked below. Follow @bjj-problems on YouTube for the weekly video digest.

Sources

• BJJ Black Belt Dies In Gym During Tijuana Training Tragedy — BJJ World
• 59-Year-Old BJJ Black Belt Passes Away During Training Session — BJJDoc
• Muere hombre durante práctica de jiu-jitsu en gimnasio de Tijuana — Semanario ZETA
• Internal Carotid Artery Dissection in Brazilian Jiu-Jitsu — PMC / Journal of Stroke and Cerebrovascular Diseases (2017)
• Cervical Artery Dissections and Ischemic Strokes Associated with Vascular Neck Compression Techniques — American Journal of Emergency Medicine (2022)
• Vascular Neck Injuries and Strokes in BJJ: Recognizing the Warning Signs — BJJEE