Trainer and boxing savant Stephen "Breadman" Edwards joins The PBC Podcast this week to break down last weekend's big upset and the highly-anticipated rematch between Jermell Charlo and Brian Castano on Saturday night for the undisputed 154-pound crown. Plus, hosts Kenneth Bouhairie and Michael Rosenthal preview the entire PBC on SHOWTIME card and list their five biggest upsets of the 21st century.