Champions League: Who can Real Madrid face in the Round of 16?

After beating Inter Milan on Tuesday, Real Madrid qualified for the Champions League Round of 16 as group winners. Here’s everything you need to know about the 2021/22 Champions League Round of 16 draw and who Real Madrid could face:
When is the Champions League 2021/22 Round of 16 draw?
The draw for the 2021/22 Champions League knockout phase will take place on Monday December 13, 2021. It will be held at 11am GMT / 6am ET at UEFA headquarters in Nyon, Switzerland.
How can I watch it?
The Champions League draw will be livestreamed on Uefa’s website.
How does the draw work and who could Real Madrid face?
The draw features 16 teams. The eight group winners are seeded and the eight runners-up are unseeded. Teams from the same group cannot be drawn against each other, and no team can play a side from their own domestic league.
Group winners (seeded): Ajax (NED), Bayern (GER), Juventus (ITA), Liverpool (ENG), LOSC Lille (FRA), Manchester City (ENG), Manchester United (ENG), Real Madrid (ESP).
Group runners-up (unseeded): Atlético (ESP), Benfica (POR), Chelsea (ENG), Inter (ITA), Paris Saint-Germain (FRA), Salzburg (AUT), Sporting CP (POR), Villarreal (ESP).
Real Madrid can play: Benfica, Chelsea, Paris Saint-Germain, Salzburg or Sporting CP.
Real Madrid’s previous meetings with their possible opponents:
Benfica: P3 W1 D0 L2 F6 A11
Chelsea: P5 W0 D2 L3 F3 A7
PSG: P10 W4 D3 L3 F13 A14
Salzburg: N/A
Sporting CP: P6 W4 D1 L1 F12 A6
According to statistical analysis by @LaLigaenDirecto, Chelsea are the most likely opponent for Real Madrid. The most likely Round of 16 opponents for Real Madrid based on odds: Chelsea (32.3%), PSG (19.4%), Salzburg (16.3%), Sporting CP(16%) & Benfica (16%).