Then there were four, but not just any four, as Europe's biggest leagues all still have a hand in the Champions League as the competition enters the semi-finals.
It is the first time since 2010 that Europe's premier club competition has had four different countries represented in the semi-finals as Liverpool, Real Madrid, Bayern Munich and Roma all pursue success.
But who will eventually come out on top as the final in Kiev edges closer? Sportsmail takes a closer look at the final four in the Champions League and why this is their year.