| 2. Runde | 27.07.2023 | NK Celje | - | Vitória Guimarães | 3:4 | ||||
| 2. Runde | 03.08.2023 | Vitória Guimarães | - | NK Celje | 2:4 i.E. | ||||
| 3. Runde | 10.08.2023 | NK Celje | - | Neman Grodno | 1:0 | ||||
| 3. Runde | 17.08.2023 | Neman Grodno | - | NK Celje | 1:4 | ||||
| Playoffs | 24.08.2023 | Maccabi Tel Aviv | - | NK Celje | 4:1 |  |
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| Playoffs | 31.08.2023 | NK Celje | - | Maccabi Tel Aviv | 1:1 |
Slowenien