While Roy is not completely shot he probably doesn't have enough left to beat the young Jermaine Taylor.Most likely it would be a very boring fight.If RJJ had to go to 160 he has no chance because he would be so weight drained.If Taylor had to come to 175 it could be a different story.Most likely it would be at a catchweight of about 170.
At the end of the day the Roy Jones of '92-'95 beats anybody put in front of him with the possible exceptions of '77-'78 Hagler, '87-'88 Nunn, and Benn at his best.