I looked at the top 15 in the sanctioning body after his last fight and picked Lerena out as the likely next opponent, as on paper he looked easiest option.
I was expecting to see Dubois go down from solid shots when I watched this, but it wasn't his chin. It's obvious that it was his right leg that went. Either achilles or ACL.
My observation is that he got hit on top of the head and it sent a spasm down to his leg or something. I don’t think he was shaken by the shot though- just a freak thing that can happen. I think we can all sometimes forget that the head isn’t supposed to be hit.
He has a habit of diving when injured doesn't he. It's a bit embarrassing, when Haye's Leg went against bellew at least he hobbled around and got taken out with respect.