Now, those two monster heavyweights are seeking to close the calendar year out with a marquee showdown to see who can enter 2022 as one of the top title threats. The two heavyweights will meet inside the Circle at ONE: Winter Warriors on Friday, December 3.

The South Korean picked up his two highlight-reel wins in February and March with back-to-back knockouts of Mehdi Barghi and Amir Aliakbari. The 26-year-old went from being a debuting athlete to a contender in just two months as he showcased his dangerous hands.

"Buchecha's" story is a little different. As one of the all-time great Brazilian Jiu-Jitsu stars, he entered ONE with an immense amount of hype. But he lived up to it in his debut with a 2:55 performance, ending in a north-south choke of Anderson "Braddock" Silva in September.

The Brazilian entered with a stature worthy of instantly being a contender if he proved he could transition into mixed martial arts. And he did just that. However, overcoming the speed and power of the "Mighty Warrior" will highlight he is ready for a shot at the top of the division.

The same can be said for Kang Ji Won. If he can prove himself against a BJJ icon, he will have shut down three exceptional talents in his first year and prove he is a top heavyweight contender.

The showdown has high stakes and will cap off an incredible 2021 for one of the two amazing athletes.

ONE: Winter Warriors airs across all Bleacher Report platforms on Friday, December 3, at 7:30 a.m. EST/4:30 a.m. PST.

Kang Ji Won vs. Mehdi Barghi | Full Fight Replay