Answer
In 2016, Tenshin Nasukawa defeated Wanchalong PK Saenchaigym in the third round of their kickboxing match. Nasukawa, who was 16 years old at the time, was the younger and smaller fighter, but he used his speed and agility to outmaneuver Wanchalong and win by unanimous decision. The victory was a major upset, as Wanchalong was considered to be one of the best kickboxers in the world.