A world famous strongman champion scored an 18-second knockout in an MMA bout against a 265-pound colossus

• Mariusz Pudzianowski scored an 18-second knockout at a recent KSW MMA event.
• Pudzianowski, a former strongman champion, is throwing fists for fun right now.

A world-famous strongman champion scored an 18-second knockout in an MMA bout against an inexperienced 265-pound colossus at a regional event in Poland last weekend.

Mariusz Pudzianowski, 44, won five World's Strongest Man competitions from 2002 to 2008 - the most in the history of the competition.

He has since transitioned into combat sports competing almost exclusively for the prominent Poland-based MMA firm KSW since 2009, putting together a reasonable pro record of 16 wins (11 knockouts and five decisions) against seven losses.

Pudzianowski's most recent bout, a heavyweight contest against fellow big man Serigne Ousmane Dia, took place October 23 in Ludz - Poland's third-largest city which is 75 miles southwest of Warsaw.

They fought the penultimate match of the evening, but it was all over after only 18 seconds of fist-fighting as Ousmane Dia kept his chin high, his hands low, and ate one too many bombs from Pudzian.

And if there's any rule to go by in life, it's this - when a strongman champion hits you, you're probably going down.

Watch it right here:

Ousmane Dia hardly had any of the experience that Pudzianowski had, competing in just his third pro MMA fight. It was his first loss in MMA.

In the main event, Sebastian Przybysz beat Bruno Augusto dos Santos with a third-round inverted triangle choke submission, to retain the KSW bantamweight title in his first defense.