Deborah Gracie Stambowsky is a BJJ black belt under her father Márcio Stambowsky, and interestingly she is one of only two women in the Gracie family to be a black belt in BJJ. Kyra Gracie was the first one. Deborah Gracie Stambowsky is also the sister of Bellator fighter Neiman Gracie. Her father is a coral belt belt and was promoted to black belt by the late legend Rolls Gracie.
In this video, you can see her rolling with her cousin Renzo Gracie:
Deborah teaches a super simple and effective sweep from closed guard:
