Chelsea were handed the toughest test in the draw for the last 16 of the Champions League as they were paired with five-times European champions Barcelona.
Having finished second in their group behind Roma, Antonio Conte's men were hoping for a potential tie against Besiktas but instead came out against Lionel Messi's band of superstars.
Tottenham were also handed a questionable reward for finishing ahead of Real Madrid in their qualifying group as they were paired with last year's runners-up Juventus.
But Manchester City, Manchester United and Liverpool will be relatively content after being paired with Basel, Sevilla and Porto respectively.
The remaining three ties pit Real Madrid against Paris St Germain, Shakhtar Donetsk with Roma, and Bayern Munich against Besiktas.
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What time is the draw?
The draw will take place at 11am GMT on Monday 11 December at Uefa's headquarters in Nyon, Switzerland.
Who is in which pot?
What are the rules?
Clubs cannot play a team from the group from which they qualified until the quarter-finals, and likewise they are not allowed to meet a team from their own domestic league until the last eight either.
That means Chelsea, for example, cannot be drawn against Roma as they were both in Group C, while they also cannot meet any of the English teams to have won their group, like Manchester United.
So who can play who?
Manchester United finished top of Group A and will face Bayern Munich (4), Juventus (5), Sevilla (7), Shakhtar Donestk (16), Porto (12) or Real Madrid (1).
Chelsea finished second in Group C and will face Paris Saint-Germain (6), Barcelona (3) or Besiktas (28).
Liverpool finished top of Group E and will face Basel (20), Bayern Munich (4), Juventus (5), Shakhtar Donetsk (16), Porto (12) or Real Madrid (1).
Manchester City finished top of Group F and will face Basel (20), Bayern Munich (4), Juventus (5), Sevilla (7), Porto (12) or Real Madrid (1).
Tottenham finished top of Group H and will face Basel (20), Bayern Munich (4), Juventus (5), Sevilla (7), Shakhtar Donetsk (16) or Porto (12).
When will the games be played?
Seeded group winners will be away in the round of 16 first legs on 13/14 and 20/21 February and at home in the return matches on 6/7 and 13/14 March.
What are the odds?
Man City 9-2
Real Madrid 29-5
Bayern Munich 38-5
Man Utd 78-5