You have 6 minutes to guess 89 champions.
Remember to tweet your scores @FourFourTwo, and challenge some friends while you're at it.
This weekend sees a classic six-pointer at the top of La Liga, with leaders Atletico Madrid visiting third-placed Barcelona on Saturday afternoon. Just two points separate the sides, with Real Madrid level on points with the Catalan giants in second place.
These three teams have dominated La Liga across decades past, but they're not the only winners. Can you tell us who the others were? You have six minutes to guess 89 champions. Vamos!
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