| 1. Round | 29/06/2017 | UE Santa Coloma | - | NK Osijek | 0:2 | ||||
| 1. Round | 06/07/2017 | NK Osijek | - | UE Santa Coloma | 4:0 | ||||
| 2. Round | 13/07/2017 | NK Osijek | - | FC Luzern | 2:0 | ||||
| 2. Round | 20/07/2017 | FC Luzern | - | NK Osijek | 2:1 | ||||
| 3. Round | 27/07/2017 | PSV Eindhoven | - | NK Osijek | 0:1 | ||||
| 3. Round | 03/08/2017 | NK Osijek | - | PSV Eindhoven | 1:0 | ||||
| Play-offs | 17/08/2017 | NK Osijek | - | Austria Wien | 1:2 | ||||
| Play-offs | 24/08/2017 | Austria Wien | - | NK Osijek | 0:1 |
Croatia