| Group D | 08/09/2022 | 1. FC Union Berlin | - | Union Saint-Gilloise | 0:1 | ||||
| Group D | 15/09/2022 | Sporting Braga | - | 1. FC Union Berlin | 1:0 | ||||
| Group D | 06/10/2022 | Malmö FF | - | 1. FC Union Berlin | 0:1 | ||||
| Group D | 13/10/2022 | 1. FC Union Berlin | - | Malmö FF | 1:0 | ||||
| Group D | 27/10/2022 | 1. FC Union Berlin | - | Sporting Braga | 1:0 |  |
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| Group D | 03/11/2022 | Union Saint-Gilloise | - | 1. FC Union Berlin | 0:1 | ||||
| Play-offs | 16/02/2023 | AFC Ajax | - | 1. FC Union Berlin | 0:0 | ||||
| Play-offs | 23/02/2023 | 1. FC Union Berlin | - | AFC Ajax | 3:1 | ||||
| Round of 16 | 09/03/2023 | 1. FC Union Berlin | - | Union Saint-Gilloise | 3:3 | ||||
| Round of 16 | 16/03/2023 | Union Saint-Gilloise | - | 1. FC Union Berlin | 3:0 |
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