Underdog victories at the World Cup: what were the biggest and best upsets? | World Cup 2026

This year, the biggest ever World Cup will feature 48 teams, an increase from 32, opening up the tournament to even more upsets, shocks and surprises. The vagaries of the World Cup draw have given rise to classic underdog victories over the years, from an amateur USA team’s shock defeat of the then-favourites England in 1950 onwards. But what does the data tell us about upsets in…