| Preliminary Round | 1st Qualifying Round | 2nd Qualifying Round | 3rd Qualifying Round | Play-offs | Group Stage |
| 16th Finals | 8th Finals | Quarterfinals | Semifinals | Final |
Rodada:
Jogados
1ª Rodada
22/10/2020 - Quinta
15:00
Celtic
1
x
3
Milan
15:00
Sparta Praha
1
x
4
Lille
2ª Rodada
29/10/2020 - Quinta
13:55
Lille
2
x
2
Celtic
13:55
Milan
3
x
0
Sparta Praha
3ª Rodada
05/11/2020 - Quinta
15:00
Celtic
1
x
4
Sparta Praha
15:00
Milan
0
x
3
Lille
4ª Rodada
26/11/2020 - Quinta
12:55
Lille
1
x
1
Milan
12:55
Sparta Praha
4
x
1
Celtic
5ª Rodada
03/12/2020 - Quinta
12:55
Lille
2
x
1
Sparta Praha
12:55
Milan
4
x
2
Celtic
6ª Rodada
10/12/2020 - Quinta
15:00
Celtic
3
x
2
Lille
15:00
Sparta Praha
0
x
1
Milan