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Fearsome striker Ngannou set a record for the hardest punch ever measured when he visited the UFC Performance Centre in 2017.
Ahead of his rematch with UFC heavyweight champion Stipe Miocic this weekend, White explained why being hit by The Predator is like being struck by a speeding car.
"Francis is a guy who has the world record for the most powerful punch," said the UFC president, per talkSPORT.
"His punches are equivalent to 96 horsepower. That's equal to getting hit by a Ford Escort going as fast as it can and it's more powerful than a 12-pound sledgehammer from full force overhead. Holy s**t."
Note: we absolutely do not recommend getting hit by a top-speed car or a 12lb sledgehammer in order to see if you can stand up to Ngannou's power. But it does give you an idea of what Miocic will be facing in the Octagon on Saturday.
Ngannou is widely viewed as the most destructive pure puncher in the UFC's heavyweight division. It's a similar status held by the French-Canadian's hero, Mike Tyson, in boxing the boxing world during the late 1980s and 1990s.
In fact, Tyson even gave willing student Ngannou some boxing and punching tips when the two met up.
"You gotta push, push push! Push and move it quick," Iron Mike told him, when Ngannou hinted he might one day like to face current heavyweight champion Tyson Fury in a boxing ring.
"The theory is, he punches long and when you punch like that, when he punches long, you got hooks inside that will move him around. Hard punches to the body.
"And with the uppercut. You hit him, boom. But it's always more than one punch. Hit that body then boom. Even numbers of the right hand, odd numbers of the left hand.
"He's got long arms, you got to go in and move your head. You got to make him miss. When you come fast, there's only two punches he can throw and that's straights or hooks. And you're anticipating them - you're going to get in close."
Ngannou was clearly delighted to be getting an up-close demonstration from his hero as he hung on the 54-year-old Tyson's every word.
And he'll need all of that punching craft if he's to detonate his bombs on Miocic in Las Vegas.
The pair first fought in 2018 and the wily Miocic turned it into a war of attrition rather than a slugfest, winning a clear unanimous decision.
However Ngannou - who has won his last four fights by scintillating first-round KOs - may well have learned from the experience. Plus the 34-year-old challenger is the younger man by four years.
That makes the UFC 260 main event incredibly tough to call. Although one thing that White, Miocic and everyone else in UFC can agree on is that Ngannou's sheer power is very much for real.
All imagery: PA Images