Congrats to Stefan Petrov for his well deserved 10 Planet JJ purple belt.
He is also:
1. multiple champion in BJJ and grappling
2. MMA champion
3. Judo black belt
4. Sambo, Combat Sambo, and Hand To Hand fighting national team member
5. Wrestling instructor
6. Professional grappler
Stefan currently trains and competes in 10 Planet London.