Eight minutes on the clock, 30 players to guess.
Remember to tweet your scores @FourFourTwo, and challenge some friends while you're at it.
All three have netted a fair few goals in this group stage so far but today, we're asking for the goalscorers who have defined these three sides in the past rather than right now.
Arsenal and Tottenham have been regulars in Europe over the last few years, while this is only Leicester's fifth campaign playing continental football. Can you remember who's scored for these teams in European matches though?
We're looking just for scorers just since the competitions have been called the Champions League and the Europa League - so need to delve back into the archives for players.
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