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José Aldo is a Brazilian Jiu-Jitsu black belt who has competed in the Ultimate Fighting Championship since 2009. He is the former UFC featherweight champion, having held the title from 2010 to 2015. Aldo is known for his powerful striking and his ability to finish fights quickly. He is also a black belt in Brazilian Jiu-Jitsu, and has used his ground skills to submit many of his opponents.