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| 1st(1st leg) | FK Astana | - | PFC Ludogorets Razgrad | 2:1 (1:1) | ||
| 2nd (2nd leg) | PFC Ludogorets Razgrad | - | FK Astana | 5:1 (1:1) | ||
| 1st(1st leg): 08/08/2023 15:00 | 2nd (2nd leg): 17/08/2023 19:00 | Winner: PFC Ludogorets Razgrad | ||||
| 1st(1st leg) | FK Žalgiris | - | BK Häcken | 1:3 (0:1) | ||
| 2nd (2nd leg) | BK Häcken | - | FK Žalgiris | 5:0 (1:0) | ||
| 1st(1st leg): 10/08/2023 17:00 | 2nd (2nd leg): 17/08/2023 18:00 | Winner: BK Häcken | ||||
| 1st(1st leg) | Qarabağ FK | - | HJK Helsinki | 2:1 (0:0) | ||
| 2nd (2nd leg) | HJK Helsinki | - | Qarabağ FK | 1:2 (1:1) | ||
| 1st(1st leg): 10/08/2023 17:00 | 2nd (2nd leg): 17/08/2023 17:00 | Winner: Qarabağ FK | ||||
| 1st(1st leg) | FC Sheriff | - | BATE Borisov | 5:1 (2:0) | ||
| 2nd (2nd leg) | BATE Borisov | - | FC Sheriff | 2:2 (1:2) | ||
| 1st(1st leg): 10/08/2023 18:00 | 2nd (2nd leg): 17/08/2023 19:00 | Winner: FC Sheriff | ||||
| 1st(1st leg) | Slavia Praha | - | SK Dnipro-1 | 3:0 (2:0) | ||
| 2nd (2nd leg) | SK Dnipro-1 | - | Slavia Praha | 1:1 (1:0) | ||
| 1st(1st leg): 10/08/2023 18:00 | 2nd (2nd leg): 17/08/2023 19:00 | Winner: Slavia Praha | ||||
| 1st(1st leg) | Zrinjski Mostar | - | Breiðablik | 6:2 (5:0) | ||
| 2nd (2nd leg) | Breiðablik | - | Zrinjski Mostar | 1:0 (0:0) | ||
| 1st(1st leg): 10/08/2023 20:00 | 2nd (2nd leg): 17/08/2023 18:30 | Winner: Zrinjski Mostar | ||||
| 1st(1st leg) | Olympiakos Piraeus | - | KRC Genk | 1:0 (1:0) | ||
| 2nd (2nd leg) | KRC Genk | - | Olympiakos Piraeus | 1:1 (1:0) | ||
| 1st(1st leg): 10/08/2023 20:00 | 2nd (2nd leg): 17/08/2023 19:00 | Winner: Olympiakos Piraeus | ||||
