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