GMA member Hannette Staack is one of the most accomplished female competitors of all times in Jiu-Jitsu.
The co-leader of Brazil 021 is known for her acrobatic moves and technical skills. In this video, she teaches a flying armbar, the same she used to become the 2011 middleweight World champion, her 7th world title in the gi.
If you want to learn personally with Hannette, you have a chance to do it this next weekend in Toronto, Canada.
For more info, go to hannettestaackevents.eventbrite.com
Enjoy and learn, but remember to always practice in the presence of a qualified instructor/professor.