1. Round | 10/07/2018 | FC Alashkert | - | Celtic FC | 0:3 | ||||
1. Round | 18/07/2018 | Celtic FC | - | FC Alashkert | 3:0 | ||||
2. Round | 25/07/2018 | Celtic FC | - | Rosenborg BK | 3:1 | ||||
2. Round | 01/08/2018 | Rosenborg BK | - | Celtic FC | 0:0 | ||||
3. Round | 08/08/2018 | Celtic FC | - | AEK Athen | 1:1 |