Unified WBC, WBA and IBF World Champion Jermell Charlo and WBO World Champion Brian Castaño will battle for undisputed status at Super Welterweight as all four 154-pound belts hang in the balance for the first time in history on Saturday, July 17 live on SHOWTIME from AT&T Center in San Antonio in a Premier Boxing Champions event.
SHOWTIME CHAMPIONSHIP BOXING begins at 9 p.m. ET/6 p.m. PT.
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