Esteban Ribovics delivers wild head-kick KO to beat Terrance McKinney seconds into their fight at UFC St. Louis

Esteban Ribovics wasted no time getting UFC St. Louis started on Saturday night.

Ribovics, not even a minute into his bout against Terrance McKinney on the preliminary card at the Enterprise Center, delivered a wild kick that ended their fight before it could even begin.

Only 37 seconds into their match, Ribovics stepped forward and landed a ridiculous kick to McKinney's head that sent him crashing unconscious into the side of the Octagon. Immediately, the officially called the fight and Ribovics started celebrating.

"This is what I told people," Ribovics said about his win, via MMAfighting.com. "I tell people all the time, this is my moment, this is my time. This is what we're here for. My plan was go for the kill. I visualized it all week. It came true and I did it."

The win pushed Ribovics to 13-1 in his career, and it marked his third win in his last four fights. The 28-year-old out of Argentina has seven knockouts in his career, too. McKinney, on the other hand, holds just a 15-7 record and has lost four of his last seven.

The preliminary fight was one of six being held before the main event on Saturday night in Missouri, which was centered around Derrick Lewis’ heavyweight matchup against Rodrigo Nascimento. Lewis has won four of his last five bouts, while Nascimento is on a three-fight win streak.

Though the main card hadn’t even started yet, Ribovics may end up taking home the shot of the night on Saturday.