Video: Demetrious Johnson at UFC178 post fight presser: I challange myself to be the perfect martial artist

“For me I always try to go out there and put up a perfect fight, and that’s a challenge in its self. I fight the best guys in the division. For me, a lot of guys didn’t give Chris Cariaso recognition, but I trained like he was the best guy in the world. So for me there are always challenges out there, and that’s to be the perfect martial artist.”

Demetrious Johnson at UFC 178 post fight press conference after his win over Chris Cariaso