This season's Champions League has now reached the business stage.
They say that the competition often doesn't really get going until the quarter-final stage, by which point only the strongest teams in Europe remain.
Getting to that stage of the competition is no mean feat, although quite a number of teams have managed it over the last couple of decades. How well do you remember them?
We want you to name every team to reach a Champions League quarter-final this century, starting with the 1999/00 season.
To help you out, we have given you the nation of each club as well as the number of times they have reached the quarter-final since the year 2000. There are 43 to get in total.
You will have 12 minutes to name the lot. Best of luck!
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