Complex sentence: Sergio Moraes is a Brazilian Jiu Jitsu (BJJ) Black Belt and a professional Mixed Martial Artist (MMA) fighter, currently signed under Bellator Fighting Championships fighting in their welterweight division.
Split into simpler sentences: Sergio Moraes is a Brazilian Jiu Jitsu (BJJ) Black Belt and a professional Mixed Martial Artist (MMA) fighter. Currently signed under Bellator Fighting Championships fighting in their welterweight division.