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A Better Way To Break An Arm
Mica Galvao's Lesson On Placing A Shoulder Sankaku

FIRST THINGS FIRST
Welcome to Open Note Grappling.
Every Tuesday morning I send out a breakdown of the best combat sports action. In less than 10 minutes you'll learn how the top fighters win and anything else fighters, martial artists, and fight fans need to know.
Mica Galvao broke another arm this weekend. Today we’re going to review the otherworldly timing and precision that turned him into the best pure Brazilian jiu-jitsu player in the world. Then, in the Premium Notebook, we’re going to review Bo Nickal’s biggest wrestling win to explain why his style might not pan out at the highest levels of MMA.
If you want to know why Nickal’s wrestling pedigree actually works against him in MMA upgrade to the Premium Notebook here.
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Now let’s get into it.
What's In Today's Letter?
MICA GALVAO GIVES US A LESSON ON ARM BARS:
How Mica Galvao Broke Roberto Jimenez’s Arm
BJJ Stars is one of the biggest pro Brazilian jiu-jitsu shows in the sport’s home country. This weekend they put on an invitational tournament with ADCC and IBJJF star competitors.
In the end, Brazilian jiu-jitsu’s brightest young star, Mica Galvao, added another high profile tournament win. To claim it, he had to break the arm of one of the most exciting competitors in grappling, Roberto Jimenez.
Jimenez shoots on Galvao. As Galvao sits he throws his leg over Jimenez’s shoulder for to attempt an arm bar. Galvao doesn’t control Jimenez’s head and shoulder height, so he can rip out of the submission. Then Jimenez tries to stack Galvao so Galvao widens his knees to stay heavy and block the pass. | ![]() Mica Galvao - Roberto Jimenez |
This arm lock attempt was just foreshadowing. About a few minutes later Galvao was back on Jimenez’s arm to break it.
Galvao is playing sit up guard. Jimenez throws on a hard collar tie. Galvao under hooks Jimenez’s arm for the straight arm lock. Galvao kicks Jimenez away to break his base before following Jimenez’s elbow as he tries to turn out of the submission. Galavo cements the position with a shoulder sankaku. | ![]() Mica Galvao - Roberto Jimenez |
Here’s a still of the final submission to explain why Galvao was able to break Jimenez’s arm.
Galvao’s low knee is flared out to put weight on Jimenez’s torso and anchor himself to Jimenez’s body
Galvao’s high leg is hooked on Jimenez’s neck to reinforce the low leg and keep Jimenez’s head down

Now let’s compare the two arm bar attempts side by side below.
In the red circle on top you’ll see Galvao’s knee in the correct position. It’s flaring into Jimenez’s torso. In the red circle on bottom you’ll see Galvao’s knee flared away from Jimenez’s body under the shoulder, allowing Jimenez to keep turning out of the arm bar.
In the blue circle on top you’ll notice Galvao reinforcing the position by hooking onto Jimenez’s head. This keeps Jimenez’s head down to prevent much of his defense. Now look at the blue circle on bottom. See how Jimenez is pushing Galvao’s leg away, disconnecting the leg from Jimenez’s neck? This allows him to turn out and escape.

The arm bar tears tissue in the elbow and to really get a good one you need to manage your opponent’s shoulder position. If they can move their shoulder, they can rotate their arm, take tension off the elbow, and escape like Jimenez did early in the match.
But, when you control your opponent’s upper arm, neck, and shoulder they cannot rotate their arm and the elbow absorbs the force of the submission before breaking to bits. That’s exactly what happened with Galvao’s last arm bar attempt.
Before this match, Galvao showed simple precise guard passing anyone can emulate.
GALVAO’S GOD LEVEL GUARD PASSING
How Galvao Perfectly Timed His Passes
Galvao’s first match was against 10th Planet stand out Jon “Thor” Blank. Thor sat to guard and Galvao was happy to hop around him and score guard passes.
Galvao is hinged completely over, matching Thor’s head height, and pushing Thor’s legs away. This stops Thor from making effective grips on Galvao. When Thor tries to slide into a guard and influence Galvao’s base he drops into knee slice before Thor can lock his legs. | ![]() Mica Galvao - Jon “Thor” Blank |
Nothing complicated nor overly fancy. Just a white belt move with Black belt timing. But to cement the victory Galvao got a bit more acrobatic.
Galvao backs out of Thor’s knee shield and starts shuffling side to side. Thor falls to one side and extends his leg to hook Galvao’s legs. Galvao secures an under hook, puts his head down, and carthweels his legs over to the side. Before Thor can react, Galvao slides his knee across his pocket to mount. | ![]() Mica Galvao - Jon “Thor” Blank |
Againt, not particularly complicated. Just direct with no fat on the technique.
Mica Galvao is special. He’s won everything there is to win in adult Brazilian jiu-jitsu competition. That means a gold medal from the IBJJF Worlds, Pan Americans, Euorpeans, and ADCC World Championships and nearly an 80% submission rate across gi and no gi competition.
Oh and he’s only 21.
Galvao is a freak. No two ways about it.
But that doesn’t mean we shouldn’t study him.
Galvao is the only athlete consistently using over hooks and wide legs to launch into arm bars. He can get away with this partly because he’s flexible, but also because he holds onto the upper arm so tightly his opponents cannot turn their elbows to escape. That’s something anyone can try.
This weekend another grappling freak returns to the UFC. Former three time NCAA Wrestling Champion and U23 Freestyle Wrestling World Champion Bo Nickal is fighting Reinier De Ridder.
Nickal is one of the most credentialed wrestlers to ever fight in MMA. But that doesn’t mean his style of grappling is what works best in MMA.
If you want to know why, keep reading.
If you want to know why, you’ll have to upgrade to the Premium Notebook. The Premium Notebook costs less than a cup of cold brew and you can try a week for free if you click here.
LINKS, INSTRUCTIONALS, AND MORE MATCHES TO STUDY:
What Are We Talking About Today?
Want more Mica Galvao? Here are three links:
Want to learn more about the arm bar Mica Galvao used? Here is a video explaining shoulder sankakus and how to escape them.
THE MOST IMPORTANT NEWS (you might have missed)
Dustin Poirier announced he will fight Max Holloway in New Orleans for his final UFC fight. This is a huge positive signal. New Orleans is not a major fight market. The fact that the UFC is bringing two of their brightest stars there tells me they’re going to start reinvesting into more big road shows instead of staying in Nevada.
Continuing with the theme of the UFC going back out on the road, they’ve also announced Joaquin Buckley will fight Kamaru Usman in Atlanta. If Buckley wins this, he’ll probably get a title shot or title eliminator fight against Ian Garry.
In a random feel good story Brazilian jiu-jitsu legend Rafael Lovato Jr. won 3rd at the freestyle wrestling masters nationals. I just think it’s awesome that a man in his 40’s is still competing in new events to test themself.
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