Rugby World Cup 2015: talking points from the opening weekend

Frantic turnaround may halt Japan’s rise, Wales are finding their groove amid the wreckage and is this the moment for England and South Africa to make changes?Was Saturday’s outcome the biggest upset at international level in any team sport? It is impossible to think of anything to match it in rugby union, modern era or not. What will live longest in the memory, beyond even the scoreline, is how the Brave Blossoms did it. Tactically spot on, a relentlessly high tempo, staggering commitment, splendidly drilled up front, astonishing handling consistency … they ticked every box to the point where…