Artur Asilbekovich Beterbiev vs. Anthony Yarde & Artem Dalakian vs. David Jiménez RBR.

300 + amateur fights Korobov couldn't make it through 2 and 4 rounds respectively in his last 2 fights when he was Beterbiev's age. His body was a wreck and her lost back to back fight on completely separate injuries

400 + amateur fights Loma has, like Korobov, Beterbiev, and Usyk who all had 300 + amateur fights, become very injury prone in his early 30s and is clearly not the fighter he was in his prime anymore.

Kovalev had about 213 amateur fights and was a shell of his former self years before he hit Beterbiev's age

GGG was way past his prime at 38

You think Usyk who didn't take up boxing until he was 15 will be as good as he is now in 2 years time when he hits 38?

These EE and fighters from former Soviet states are notorious gym rats and are known to train extremely hard all year round and when you've been doing grueling training since you were a young boy and had 300 plus amateur fights it's obviously going to take a huge toll on your body. I think doing that for 20-25 years in is the max most fighters have in them but the likes of Beterbiev and Loma have been doing it for 29-30.

I've been watching all these fighters since 2008 sans Kovalev. For 15 years and it feels longer than that.