Kenny can be pretty elusive, and he has those nasty elbows in the clinch. I wonder how 1 or 2 huge cuts on BJ's face will affect him.
I see BJ having problems with Ken especially if he is not all there mentally.
Here is my 2 cents.
IF BJ shows up in great condition and mentally on top of the world, I would give BJ the edge of 80% chance of winning.
If BJ shows up in less than great shape and mentally unfocused, or takes Ken lightly then I would give Ken 65% chance of winning.