| 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
09/20/2018 - Thursday
15:00
Arsenal
4
x
2
Vorskla Poltava
15:00
Sporting CP
2
x
0
Qarabağ
2nd Round
10/04/2018 - Thursday
12:55
Qarabağ
0
x
3
Arsenal
12:55
Vorskla Poltava
1
x
2
Sporting CP
3rd Round
10/25/2018 - Thursday
12:55
Qarabağ
0
x
1
Vorskla Poltava
12:55
Sporting CP
0
x
1
Arsenal
4th Round
11/08/2018 - Thursday
15:00
Arsenal
0
x
0
Sporting CP
15:00
Vorskla Poltava
0
x
1
Qarabağ
5th Round
11/29/2018 - Thursday
12:55
Qarabağ
1
x
6
Sporting CP
12:55
Vorskla Poltava
0
x
3
Arsenal
6th Round
12/13/2018 - Thursday
15:00
Arsenal
1
x
0
Qarabağ
15:00
Sporting CP
3
x
0
Vorskla Poltava