Petrosyan, widely regarded as the greatest of all time in the sport, will finally get his shot to wear the coveted gold belt on the global stage, but the rising Thai athlete hopes to spoil his party.

The two have exchanged words in the build-up to the matchup, and the additional heat adds a little extra flavor to what was already promised to be a special main event. It will be an epic ONE Super Series clash that everybody needs to witness.

Noted legends Bas Rutten, Duke Roufus, and Ernesto Hoost gave their thoughts on the upcoming event in an exclusive video for ONE. The three experts also shared their insight into the 2021 ONE Featherweight Kickboxing World Grand Prix, which will get underway on the undercard.

Roufus also gave his prediction for the main event. The leader of RoufusSport proclaimed that Petrosyan would walk out of the match as the first-ever ONE Featherweight Kickboxing World Champion.

ONE: First Strike has a who's who of the striking elite, and the all-ONE Super Series bill is going to light the martial arts world on fire. It is a can't-miss spectacle coming your way this weekend.

ONE: First Strike airs live across all Bleacher Report platforms at 8:30 a.m. EST/5:30 a.m. PST on Friday, October 15.

LEGENDS Predict ONE: FIRST STRIKE | Bas Rutten, Ernesto Hoost & MORE