Tszyu watches as Charlo stops Castano

By Greg Beacham
Updated May 15 2022 - 5:01am, first published 4:56am
Jermell Charlo (l) stopped Brian Castano (r) in their super welterweight title rematch.

Tim Tszyu was ringside as American Jermell Charlo became the first undisputed super welterweight boxing champion in the four-belt era by stopping Argentina's Brian Castano in a brutal rematch in California.

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