Jermell Charlo erases all doubt and becomes the Undisputed Super Welterweight King after stopping Brian Castano in the 10th round of an extraordinary back-and-forth battle. In a history-making performance, Jermell Charlo again showed he’s the master of the rematch. Unified WBC, WBA and IBF World Champion Jermell Charlo picked up the WBO title with a dramatic tenth-round KO of Brian Castaño in a rematch of their 2021 masterpiece to become the first ever undisputed male 154-pound champion in the four-belt era on Saturday, May 14 live on SHOWTIME from Dignity Health Sports Park in Carson. The bout, which was another Fight of the Year-type encounter, headlined a Premier Boxing Champions event before an announced crowd of 7,406. The end came when Charlo (35-1-1, 18 KOs) dropped Castaño with a short, left hook as he was fighting off the ropes with around a minute left in the tenth. Castaño (17-1-2, 12 KOs) rose on unsteady legs and was allowed to continue and Charlo jumped on him, landi