He's 21 so it's early days yet to compare him to either of these greats.. But to me it seems like he has more of an Andre Ward level talent than a Mayweather or Roy Jones in terms of athleticism. Also, like Ward, Devin is working very hard on his inside game and roughhouse tactics. I see Haney having more of a Ward or Hopkins type career than a Mayweather or Roy Jones tier career.. Basically one of the best guys of the era but not THE pinnacle.