| Preliminary Round | 1st Qualifying Round | 2nd Qualifying Round | 3rd Qualifying Round | Playoff Round | Group Stage |
| 16th Finals | 8th Finals | Quarterfinals | Semifinals | Final |
Round:
Played
1st Round
07/11/2018 - Wednesday
11:45
Vaduz
1
x
0
Levski Sofia
2nd Round
07/17/2018 - Tuesday
11:45
Levski Sofia
3
x
2
Vaduz