BJJ brazilian jui jutsu belt promotion close up on hands of unknown instructor black belt professor tie up brown belt on waist of his student

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Photo credit: © Miljan Živković / Alamy / Afripics
License: Royalty Free
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Keywords: arts, belt, bjj, brazilian, brown, close, focus, gi, hand, hands, indoor, instructor, jitsu, jiu, jiu-jitsu, kimono, martial, midsection, professor, progress, promotion, rang, selective, student, tie, unknown