The draw for the play-off round will take place on Friday but we already know the 50-50 ties.
So Celtic or Manchester City will play Real Madrid - with the other taking on Bayern Munich. The winner of those ties will take on Atletico Madrid or Bayer Leverkusen in the last 16.
Liverpool and Barcelona will play Monaco, Brest, PSG or Benfica in the last 16.
Arsenal and Inter Milan will play Feyenoord, Juventus, AC Milan or PSV.
Aston Villa/Lille will take on Sporting, Club Brugge, Atalanta or Borussia Dortmund.
The draw for the play-off round is on Friday at 11:00 GMT.