I do believe that Pac will KO Mikey if and when they meet. Algieri compared Spence and Pac's power and he said that Pac's power is more shocking to the system whereas Spence's power is heavy. He said Provodnikov was the hardest puncher he faced.
Mikey's easy to stop. All you need to do is give him a little billy goat butt on that big snozzle of his and he'll pull a no mas everytime.
First question is, will he ever reach his former level again after having cheated death in his car accident?