Six minutes on the clock, 74 teams to guess - international and club - with 37 each for messieurs Messi and Ronaldo.
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What started off as a simple comparison between two burgeoning talents of the European game quickly escalated.
There's the quiet, reserved introvert of Messi - a diminutive figure on the pitch and loyal servant of Barcelona. And then there's the towering extrovert of Ronaldo - all bluster and showmanship, turning out for Europe's biggest clubs. They couldn't be more different.
Everyone has one they prefer. Sadly, the two leading figures in modern football won't clash again tonight, as Ronaldo recovers from coronavirus. But Messi's Barcelona against an absent Ronaldo's Juventus had us flicking back through finals of years gone by for this pair. Can you remember who they faced?
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