At Euro 2024 it was the state-of-the-art Oura Ring tracking sleep quality and heart rate, but England may well have stumbled on their favoured newfangled 2026 World Cup gadget fad seven months early.

A uniquely pungent smell, the gross stench of damp and sweaty runners or football boots can seep through the bottom floor of a house in mere hours. It clings to furniture and clothes and can be really ...