22. Francis Ngannou vs. Jairzinho Rosenstruik
The first of two Ngannou knockouts on this list, this was a fearsome finish. ‘The Predator’ faced off against the highly-rated Rosenstruik at UFC 249. ‘Bigi Boy’ wasn’t afraid of Ngannou before the fight; however, ‘The Predator’ continued his renaissance and reaffirmed his claim for a title shot with a scary finish in just 20 seconds.
Ngannou has the type of inherent power that few fighters possess. Arguably only Deontay Wilder has the same ability in combat sports. The Cameroonian stormed forward, even eating a couple of counters, to smash Rosenstruik to the ground. Some ground-and-pound and it was over. This was a display of ruthless savagery. He might not be the most technical heavyweight but he is definitely the most terrifying.