We weren't the only ones impressed: UFC president Dana White was quick to comment, ""Holy F**kin S**T!!!!"
Ngannou's next bout is scheduled for March 29 (AEDT) in Ohio where he will come up against Surinamese mixed martial artist Jairzinho Rozenstruik.
Rozenstruik is no slouch. His career record is impressive: 10-0, all knockouts.
The 31-year-old is confident Ngannou will just be another statistic as he moves closer to a shot at the title.
“I fought a lot of strong guys before – big, scary guys – and I used to knock them out. This won’t be any different,” Rozenstruik said.
“The only thing I know is that we’re working and we’re going to get the job done. That’s what we’re going in for.
“I don’t think he’s the best striker I’m going to face, but he is the biggest challenge. We believe we’re going to put him away. It’s a fight. It’s going to go back and forth – who lands first, who can take a shot, who cannot. We’re going to see March 28.”