Srisaket Sor Rungvisai & Naoya Inoue retain super-flyweight titles
Thailand's Srisaket Sor Rungvisai knocked out Nicaraguan Roman Gonzalez in their rematch in the USA to retain his WBC super-flyweight title.
Srisaket won their fight in March by majority decision but floored Gonzalez twice on Saturday, finishing the bout with a right hook in round four.
"This fight I knew I was going to knock him out," said the 30-year-old.
On the undercard, Japan's Naoya Inoue knocked out American Antonio Nieves to defend his WBO super-flyweight crown.
Britain's Kal Yafai holds the super-flyweight WBA title and he will next fight on Saturday, 28 October against mandatory challenger Sho Ishida of Japan at the Principality Stadium in Cardiff.