I love Hopkins, but I wouldn't play him at this price. Kovalev is a big step up from anyone Hopkins as fought lately. You could say the same think of Hopkins, but the difference is that while they've been fighting guys of roughly the same caliber (top 20, but not top 10), Kovalev has been destroying them, and Hopkins hasn't, and struggles more often than not. I think this is the fight where we finally see that yes, Hopkins DOES age.
I'd love to be wrong.