Springbok coach Rassie Erasmus acknowledged the relevance of the Boks' shock defeat against Japan in the 2015 Rugby World Cup.
The World Champion Springboks will start the Castle Lager Outgoing Tour with a historic Test against Japan at London's iconic Wembley Stadium on Saturday, 1 November.
Japan head coach Eddie Jones believes Springbok scrumhalf Grant Williams is the fastest No.9 in the game.
Wales ended almost two years of heartbreak by claiming their first victory since the 2023 Rugby World Cup with a 31-22 win over Japan in Kobe.
Wales' woes deepened on Saturday as Japan handed them an 18th straight defeat, edging a tightly contested first Test 24-19 in Kitakyushu.
After a superlative season with Moana Pasifika, All Blacks superstar Ardie Savea will miss the 2026 Super Rugby Pacific season to play in Japan.