Welcome to World Cup Venn!
It's three World Cup nations for you to identify today - and if you can't get that far then we'd wonder why you're even reading this.
But what is the link between these sides?
There's a clue in the photos we've chosen of each.
Find out the answer at half-time of today's clash between the Netherlands and Slovakia.
The teams are Italy (left), France (right) and Argentina (bottom).
And the answer? They are the only three countries to have been involved in four World Cup penalty shootouts.
Italy have won one and lost three; Argentina have won three and lost one; and France have won two and lost two.
you're sitting there grumbling that Germany - actually, West Germany
have been in three shootouts (the same as England, Brazil and Spain),
with the fourth German shootout being contested by the new and
different nation of Germany.
- - - - - - - -
Hands up: it was a bit of a wacky one yesterday.
So full marks if you knew who the famous trio were. To be honest, two of them should have been easy - but in case you were wondering about the other one, it's the Pope.
The people are Alcides Ghiggia (left), Pope John Paul II (right) and Frank Sinatra (bottom).
And the link between them? The Maracana stadium in Rio de Janeiro.
Years after he scored the late winner in front of 200,000 fans at the 1950 World Cup final, the Uruguayan winger gave one of football's most famous quotes: "Only three people have ever silenced 200,000 people at the Maracanã with a single gesture: Frank Sinatra, Pope John Paul II and me."