Five minutes on the clock, 28 answers to guess - that's 11 players on each side, plus three substitutes.
Remember to tweet your scores @FourFourTwo and share with your mates - especially if they're Liverpool fans.
Anfield has one of the richest histories of any stadium when it comes to European football.
It goes to show what an incredible game the 4-0 vs Barcelona was, that it's one of that old ground's greatest nights. It was the impossible - and Liverpool pulled it off.
Still, a year later, the iconic image of the Kop joining as one to sing You'll Never Walk Alone together is enough to give you goosebumps - whether you love the Reds or not. (OK - maybe not if you support Everton or Manchester United)
Today, we'd like you to name both sides who featured in that game, substitutes included. It was only a year ago, after all...
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