For some reason, soccer nations seem to enjoy the fact that any team can win any game, due to the nature of the game. It is such a low scoring game, that one goal can decide the game. So all it takes is an incredibly lucky kick, or cheat, for a side to win.
You don't see this in many other sports.
So while the Premier league the result is certain (either Chelsea or Man United), the World cup, where in the later stages one game decides whether you move on or not, anyone has a chance.