When is it?
The draw takes place at UEFA headquarters in Nyon, Switzerland, on Monday 16 December.
Who is involved?
The draw features the eight group winners (seeded) and eight runners-up (unseeded):
Seeded
Barcelona (ESP: Group F)
Bayern München (GER: Group B)
Juventus (ITA: Group D)
Leipzig (GER: Group G)
Liverpool (ENG, holders: Group E)
Manchester City (ENG: Group C)
Paris Saint-Germain (FRA: Group A)
Valencia (ESP: Group H)
Unseeded
Atalanta (ITA: Group C)
Atlético (ESP: Group D)
Chelsea (ENG: Group H)
Dortmund (GER: Group F)
Lyon (FRA: Group G)
Napoli (ITA: Group E)
Real Madrid (ESP: Group A)
Tottenham Hotspur (ENG: Group B)
How does the draw work?
~The seeded teams are at home in the second legs.
~No team can play a club from their UEFA Champions League group or a side from the same national association.
~Further restrictions will be confirmed before the draw.
When do ties take place?
The first legs are scheduled for 18, 19, 25 and 26 February, with the second legs on 10, 11, 17 and 18 March. Kick-offs are at 21:00 CET. The draw for the quarter-finals, semi-finals and final is on 20 March.
Image courtesy: twitter.com