*BATE Borisov 4-2 Alashkert Martuni
| 18.07.2017 | Alashkert Martuni | 1-3 | BATE Borisov | |
| 12.07.2017 | BATE Borisov | 1-1 | Alashkert Martuni | |
Linfield Belfast 0-6 Celtic FC *
| 19.07.2017 | Celtic FC | 4-0 | Linfield Belfast | |
| 14.07.2017 | Linfield Belfast | 0-2 | Celtic FC | |
*APOEL FC 2-0 F91 Dudelange
| 19.07.2017 | F91 Dudelange | 0-1 | APOEL FC | |
| 12.07.2017 | APOEL FC | 1-0 | F91 Dudelange | |
*FH Hafnarfjordur 3-1 Vikingur Gota
| 18.07.2017 | Vikingur Gota | 0-2 | FH Hafnarfjordur | |
| 12.07.2017 | FH Hafnarfjordur | 1-1 | Vikingur Gota | |
*FK Partizan 2-0 FK Buducnost
| 18.07.2017 | FK Buducnost | 0-0 | FK Partizan | |
| 11.07.2017 | FK Partizan | 2-0 | FK Buducnost | |
*Hapoel Be'er Sheva 5-3 Budapest Honved
| 19.07.2017 | Budapest Honved | 2-3 | Hapoel Be'er Sheva | |
| 12.07.2017 | Hapoel Be'er Sheva | 2-1 | Budapest Honved | |
IFK Mariehamn 0-9 Legia Warszawa *
| 19.07.2017 | Legia Warszawa | 6-0 | IFK Mariehamn | |
| 12.07.2017 | IFK Mariehamn | 0-3 | Legia Warszawa | |
VMFD Zalgiris 3-5 Ludogorets *
| 19.07.2017 | Ludogorets | 4-1 | VMFD Zalgiris | |
| 12.07.2017 | VMFD Zalgiris | 2-1 | Ludogorets | |
MSK Zilina 3-4 FC København *
| 19.07.2017 | FC København | 1-2 | MSK Zilina | |
| 12.07.2017 | MSK Zilina | 1-3 | FC København | |
*Qarabag FK 6-0 FC Samtredia
| 18.07.2017 | FC Samtredia | 0-1 | Qarabag FK | |
| 11.07.2017 | Qarabag FK | 5-0 | FC Samtredia | |
Hibernians Paola 0-6 RB Salzburg *
| 19.07.2017 | RB Salzburg | 3-0 | Hibernians Paola | |
| 11.07.2017 | Hibernians Paola | 0-3 | RB Salzburg | |
Dundalk FC 2-3 Rosenborg BK *
| 19.07.2017 | Rosenborg BK | 2-1 AET | Dundalk FC | |
| 12.07.2017 | Dundalk FC | 1-1 | Rosenborg BK | |
*Sheriff Tiraspol 2-2 FK Kukesi
| 19.07.2017 | FK Kukesi | 2-1 | Sheriff Tiraspol | |
| 12.07.2017 | Sheriff Tiraspol | 1-0 | FK Kukesi | |
Spartaks Jurmala 1-2 FC Astana *
| 18.07.2017 | FC Astana | 1-1 | Spartaks Jurmala | |
| 12.07.2017 | Spartaks Jurmala | 0-1 | FC Astana | |
*HNK Rijeka 7-1 The New Saints
| 18.07.2017 | The New Saints | 1-5 | HNK Rijeka | |
| 11.07.2017 | HNK Rijeka | 2-0 | The New Saints | |
Malmö FF 2-4 Vardar Skopje *
| 18.07.2017 | Vardar Skopje | 3-1 | Malmö FF | |
| 12.07.2017 | Malmö FF | 1-1 | Vardar Skopje | |
Zrinjski Mostar 2-3 Maribor *
| 19.07.2017 | Maribor | 1-1 | Zrinjski Mostar | |
| 12.07.2017 | Zrinjski Mostar | 1-2 | Maribor | |