The World Cup is not traditionally the tournament for underdogs. The trophy has been lifted by just eight countries — and five of those have won multiple times. But there’s usually enough room for a few Cinderella stories to creep into the knockout phase: Bulgaria (1994), South Korea (2002) and Turkey (2002) were unexpected semifinalists, while Cameroon (1990), Ghana (2010) and Costa Rica (2014) crashed the quarterfinals.