KSW Colosseum 2 results: Watch ultra-rate huge KO from full mount (Video)

The former WBO cruiserweight champion showed he's still got it with unexpected finish.

KSW 83: Colosseum 2 has been everything that it was billed to be thanks to devastating finishes like this one. In front of 45 thousand plus fans, former WBO cruiserweight champion Krzysztof Głowacki turned back the clock to deliver a knockout not on his feet but from his back.

Krzysztof Głowacki makes his MMA debut in style

The former boxer made his MMA debut on the monumental card and was treated to a huge roar from the partisan Polish crowd. He faced another former boxer making his mixed martial arts debut in Patryk Tolkaczewski.

It didn't take Głowacki long to find the finish and what a punch it was. Being mounted and in danger of being finished himself in the first round, Głowacki found a miracle punch from guard position to knock his opponent out cold.

At 36 years of age, it's hard to know how much longer Głowacki will compete in MMA. One thing is certain though, he definitely has the power to be a problem for anyone in the KSW heavyweight division.

KSW Colosseum 2 results:

Mamed Khalidov def. Scott Askham via KO (flying switch kick, punches) — Round 3, 1:03

Pawel Pawlak def. Tomasz Romanowski via TKO (punches) — Round 5, 3:25

Arek Wrzosek def. Bogdan Stoica via submission (forearm choke, elbows) — Round 1, 2:09

Michal Materla def. Radoslaw Paczuski via TKO (punches) — Round 1, 1:37

Valeriu Mircea def. Roman Szymanski via split decision

Daniel Rutkowski def. Adam Soldaev via unanimous decision

Leo Brichta def. Maciej Kazieczko via split decision

Krzysztof Głowacki def. Patryk Tołkaczewski via KO (punch) - Round 1, 1:33 | Watch finish

Mariusz Joniak def. Sebastian Romanowski via majority decision

KSW 83: Colosseum 2 takes place on Saturday, June 3, live from the PGE Narodowy in Warsaw, Poland. Follow along with FanSided MMA for all your news and highlights.