I don’t think Derevyanchenko has the frame for 175, however he is the tougher, fresher fighter currently. Derevyanchenko has just run the top 2 160lb guys close. I had him beating Jacobs 114-113 and just losing to GGG 115-112.....excellent fights.
I think any of the top 160 guys would have given that version of Kovalev a close run and maybe beaten him.
He's able to close the distance much better than Canelo and has superior head movement when getting in close, his body attack would break Kovalev down, and probably get him out of there even earlier than Canelo, but not quite as brutally. As much as I hate to say that, Sergey is that far gone.
Kovalev should have his boxing license revoked. At this point, he couldn't even keep a young school girl at bay with that jab. May God have mercy on his soul and never let him anywhere near a ring ever again