Watch the heated stare down between Conor McGregor and Dustin Poirier, as well as Demetrious Johnson, Chris Cariaso, Donald Cerrone, Eddie Alvarez and others as they make weight for their respective UFC 178 fights.
David is a Brazilian Jiu Jitsu and boxing practitioner who has watched and studied MMA for the past 9 years. Send him your questions @davidkingwriter.
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