Some events happen and everyone says,
“Yeah, I’ll go next time.”
This is not one of those events.
There is no next time.
Not here. Not in the south of England.
Not with a fighter like this.
On Sunday 31st May 2026, GB Top Team is hosting Demetrious “Mighty Mouse” Johnson for a full day of world-class MMA knowledge. A grappling seminar and a striking seminar taught by one of the most complete, innovative, and freakishly intelligent fighters to ever step into a cage.
This is the type of opportunity fighters, hobbyists, and coaches talk about for years.
Why Mighty Mouse? Why This Matters
You can go your entire training life without ever learning directly from someone like Demetrius Johnson.
He is not just a champion.
He is not just one of the all time G.O.A.T.S of MMA
He is the blueprint.
The transitions, the scrambling, the way he blends striking with grappling like it is one fluid language. He changed how MMA is taught. He changed how smaller fighters approach this sport. He changed how coaches think about movement, pressure and sequencing.
And now he’s stepping onto our mats at GBTT.
Two Seminars. Two Sides of Greatness. One Day.
1. Grappling Seminar
If you’ve ever tried to hold down someone slippery, explosive and clever, you already know why this one matters.
Mighty Mouse’s grappling is chaotic in the most controlled way possible. He makes grappling exchanges look like poetry.
Expect details on:
- transitions you have never considered
- pressure that feels light but works heavy
- how to stay dangerous in every phase
- how to solve scrambles instead of surviving them
This is grappling IQ that only comes from decades at the highest level.
2. Striking Seminar
Forget textbook combos. This is striking for MMA.
Angles, exit strategies, feints, rhythm changes, off-beats, set-ups that look simple until you try them…
If you are an MMA striker or someone who wants to understand how to hit without being hit, this seminar will change the way you train.
This Is His Only Appearance in the South of England
Read that again.
Demetrious Johnson is not doing a tour. He is not doing drop-ins.
This is it.
If you train anywhere in London or the surrounding counties, this is as close as you are getting.
And when the spaces go. they are gone!
Why GBTT? Why Here?
Because this is the culture we build:
real martial artists, real coaching, real learning.
GBTT is not a place for empty hype. When we bring in someone of Mighty Mouse’s calibre, it is because we want our members and the wider MMA community to experience a level of insight you cannot get from YouTube, from breakdown videos or from highlight reels.
We want people to leave the room feeling like the sport just opened up in a new way for them.
Who Should Attend?
This seminar is for:
- MMA fighters (amateur and pro)
- Anyone who wants to elevate their grappling or striking game to the next level
- Hobbyists with solid training experience
- Coaches who want new layers to teach and apply
You do not need to be a competitor.
You just need to be someone who actually wants to learn.
Final Word: Do Not Wait
Opportunities like this are rare.
Opportunities like this in Morden, at GBTT, with this level of access, are almost unheard of.
If you are serious about improving your grappling, your striking or your understanding of MMA as a whole, this is the day you show up.
🎟 Tickets available now https://www.eventbrite.com/e/demetrius-mighty-mouse-johnson-super-seminar-tickets-1974881866826?aff=oddtdtcreator
📅 Sunday 31st May 2026 kicking off at 10:30
📍 GB Top Team, Morden
⏰ Two seminars: Grappling + Striking
Train with a legend. Learn from one of the greatest to ever do it.
Do not miss this. You will kick yourself if you dont act fast!