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Khalil Rountree Jr. is a professional mixed martial artist competing in the Light Heavyweight division of the UFC. www.ufc.com/athlete/khalil-rountree-jr

Khalil Rountree Jr. is a UFC Light Heavyweight fighter.

Wiz Khalifa is a rapper, singer, songwriter and actor. His new documentary "Wiz Khalifa: Behind the Cam" is available now.