​Sergey Spivak's octagon debut did not go well, not one bit. He was matched up against Walt Harris at ​UFC Ottawa, and just as the commentators were commending Harris for his impressive ​knockout résumé, he delivered a nasty barrage of blows to Spivak and clinched the fight in just 50 seconds. 


Spivak didn't stand a chance in this bout, as the 23-year-old fell victim to the insane burst of jabs from Harris, forced into the corner of the ring, eating blow after blow. The 50-second clash was Spivak's UFC debut, and he's likely wishing it had played out a bit differently.

Harris has won two consecutive heavyweight bouts and continues his impressive run in which every one of his victories has come via a knockout.