| 3rd Qualifying Round | Play-offs | Group Stage | Knockout round | Round of 16 | Quarterfinals |
| Semifinals | Final |
Round:
Played
1st Round
08/18/2021 - Wednesday
11:45
Celtic
2
x
0
AZ Alkmaar
2nd Round
08/26/2021 - Thursday
11:15
AZ Alkmaar
2
x
1
Celtic