If they fought tomorrow Arreola in under 6rds. Mitchell's not ready yet, a few more fights down the line and who knows.
Well, it would probably be a VERY entertaining fight. Just a slugfest, but a good one. Like Boxed Ears sez, definitely would end in a KO. If Arreola is in shape, he'd have the edge due to better experience with top fighters. Plus, he has a slightly more varied offense than the 1-dimensonal Mitchell. I'd love to see this happen.
Lol @ the people saying "mitchell can win in 2 or 3 fights" It's always the same with Mitchell, it's always "in 2 or 3 fights" No, it's never. Mitchell can never win never