Jermell Charlo (gold/red shorts) knocks down Brian Castano (white/pink shorts) during their super middleweight title fight at Dignity Health Sports Park on May 14, 2022 in Carson, California. Charlo won by knockout in the 10th round. Jayne Kamin-Oncea/Getty Images/AFP Jermell Charlo knocked out Argentina’s Brian Castano to become the first undisputed super welterweight … [Read more...] about Jermell Charlo knocks out Brian Castano to claim undisputed crown