UFC St. Louis video: Esteban Ribovics sleeps Terrance McKinney with brutal head-kick knockout in 37 seconds

Esteban Ribovics lived up to his reputation as a devastating first-round finisher yet again at UFC St. Louis.

Taking on an all-action fighter like Terrance McKinney on the preliminary card was exactly what Ribovics needed to add another knockout to his highlight reel. The fight barely got going before the lightweights were swinging for the fences with a “whoever lands first likely scores a knockout” type of mentality.

It was...