It's a variety of things IMO. Hopkins has better fundamentals than Jones Jnr and he also didn't piss about with going up to HW and then jumping back down two weight classes. Jones Jnr messed his body up doing that and having relied so much on speed, was less able to adjust when his body wasn't quite the same. Hopkins went up in weight sensibly and was able to escape looking slightly less good in his final days at MW. In that sense, Hopkins is more savvy and self aware. He's a very smart man which is why I am a little confused about the Kovalev fight.
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