This is a step up fight for Ennis however I personally don’t think he’ll struggle all that much as hes one of the best prospects in boxing and has a great skill set of technical skills combined with power and good finishing instincts. Chris van Heerden is a solid fighter but isn’t really on the same skill level as Ennis and hasn’t fought for over a year. He is also taking this fight on relatively short notice though he does seem to be prepared.
I think Jaron Ennis will win by knockout in the 7th or 8th round due to having the better overall skill set and especially having more power.