wouldn't call them the king of slices.
I think Funky Flo is the king of junkballing, like mixing up slices, weird shots like his legendary jumping backhand, dropshots, low-pace forehands, forehand bombs. All kinds of stuff disturbing opponents rhythm.
Tomic is similar but not king of junkballing. Tomic is king of trashballing. That's why defeating Tomic is often called "taking out the trash"
As for the match: Flo in 3