Im not basing it off him beating Ryan he's a good puncher slightly more athletic than Haney with a good left hook
Haney beats him in the same way he beat Norman, a shock knockdown early to take the wind out of his sails and then a pedestrian, insomnia-inducing shutout. He's called The Dream for a reason - because he puts everyone to sleep who has to sit through 12 rounds of his fights.
I think Rolly is defensively lax enough to get stopped by Haney, who appears to have some pop at 147, but my money would be on a very wide and very boring Haney UD. Haney has zero risk appetite. The fact that he was content to coast to a UD against Norman after an early knockdown is proof of that, and I find it extremely hard to respect, especially given that he’s still very big for 147.
