The Johnson fight scrambled his brain a bit I reckon. It doesn't matter how many people told him before hand that Johnson will fiddle about, mess him around and try to survive. Dubois is a kid who wants to impress and Joshua is his yardstick. Human nature for him to want to do as well if not better. Setting himself up for a fall trying to force Johnson out of there. When it didn't happen he got a bit confused. He can have a pass on that one. Good learning fight.