Japan supporters pose after the 2026 World Cup Group F football match between the Netherlands and Japan at the Dallas Stadium in Arlington on June 14, 2026.

Japan fans left the stands spotless after their World Cup opener against the Netherlands in Texas on Sunday, saying it was "Japanese culture" to tidy up after themselves.

Spectators stayed behind after the 2-2 draw to make sure they left the stadium as they found it, meticulously picking up litter and stuffing it into blue plastic bags.

It is a habit first learned at primary school and Japan fan Eita Tanaka told AFP that "we have to think about everyone".

"Japanese people think that when we use a certain place, we were told that you have to make that place look tidier when you leave than it was when you arrived," said the 20-year-old, clasping a beer and a couple of cups, and wearing Japan's blue shirt.