He won't, he isn't fast enough, Roy will be able to react if Bernard walks straight in, how many times have we heard that Bernard would step it up, and he didn't, he should have against Taylor in their second fight that was clear by the end of the first fight, but he didn't. At the very least if Bernard comes forward, Roy is blocking pretty much everything.

They both were different fighters when they first fought. Bernard also got respect from jones because he was a knockout puncher in his own right, and he was a lot faster back then.