At 6'2 and around 226-pounds, Michael Hunter is far from the biggest guy in the heavyweight division.
In the last few years, a lot of mid-sized heavyweights have been making waves in the weight class - after the weight class was dominated by giant-sized fighters for a long time.
Even the much taller heavyweights at the very top of the mountain, like Deontay Wilder, Tyson Fury and Anthony Joshua - are keeping their weight in check to become more mobile fighters, increasing stamina and raising their ability to win.
Hunter has noticed that boxers at the weight are not as physically massive as they used to be.
Oleksandr Usyk, Murat Gassiev and Hunter are among the smaller boxers who decided to make the jump from cruiserweight.
"Boxers are starting to find the balance of what a natural fighter should be. Over the past few years, we've got away with fighters who are not normal because it's easier to sell them like that. But it's finding a balance now. There is a limit. If you're naturally so big there's nothing you can do. But being big doesn't really help you. Every fighter knows that. To be the best boxer we are refining and fine-tuning," Hunter said to Sky Sports.
"t is very hard to be a heavy fighter. Unless you are Ruiz Jr and you've always fought heavy, so you know how to be explosive and fast. But it didn't help his feet. I would agree [that heavy fighters aren't suited to longevity]. That would be the norm. But there are people outside of the norm like Ruiz Jr. Normally the ideal fighter has long limbs, long muscles, slim. Not big and bulky - it's rare to have a fighter like this, not impossible, but rare. In fighting, you need longevity and endurance. You need to be loose and limber."