It's hard to tell. Jones was probably juicing for most of his career, including his first fight with DC. Assuming he's now clean, he should not be quite the same. DC has shown a great chin and recovery, but the accumulation of damage and his age have to be considered. DC was beat by Jones, dropped by Rumble, dropped and nearly finished by Gustafsson, and hurt by Silva. He's taken some damage recently, and while he's shown great recovery, he's been getting hit and hurt recently. Jones has a lot of technique, and we'll see how effective he is off the roids. Jones doesn't hit relatively hard, but he can wear down DC. Maybe a late TKO via GNP, but Jones probably won't finish DC standing.