Saturday’s boxing lineup on FS1 gets underway at 9:00 PM ET with Sylvester Stallone back in the ring as Rocky Balboa in the 1982 classic Rocky III. After the film, relive some real-life boxing drama as Manny Pacquiao defends his WBA welterweight title against Adrien Broner from January 2019, followed by the January 2017 rematch between Leo Santa Cruz and Carl Frampton II for the WBA World featherweight title.