Who could beat Roy Jones?

[Ron Swanson]

We forgot the obvious, the G-man

Oh gawwd lol. G man was a pretty good boxer when he first started but once he fell in love with his power, he became a headhunter who neglected skills and defense.

Roy would have owned him.

Roy never would have fought him, Roys words. The reach, speed, power, tanacity. Roy couldn't handle it with headgear, he admitted he wanted none of it professionally.

Edit-Roy was obviously a better fighter but it's a nightmare matchup. And this is who COULD beat Roy not who would beat Roy.