PBC Countdown | Get a glimpse inside the preparation of fighters Williams and Rosario | PBC ON FOX

Follow fighters Julian Williams and Jeison Rosario as they prepare to do battle for the WBA and IBF Super Welterweight belts in Philadelphia, PA. #PBConFOX #JulianWilliams #JeisonRosario SUBSCRIBE for more from PBC ON FOX: ►FOX Sports YouTube channel: See more from PBC ON FOX: Like PBC ON FOX on Facebook: Follow PBC ON FOX on Twitter: Foll