Chris Byrd is naturally more or less the same size as Roy, and had a decent amount of success against a better field of heavys a few years ago. He isn't a fraction of the boxer or athlete that Roy was.
Roy would have a field day with this group of contenders, as well as the champ, and score a few KO's along the way.
He would clean the division out
Then collect his schillings
YAW MUSTA FO'GOT!!!!