Real Madrid v 1.FC Union Berlin, 20 September 2023
| Score | 1-0 to Real Madrid |
| Referee | Espen Eskås |
| Competition | UEFA Champions League Group C |
| Venue | Santiago Bernabeu, Madrid |
| Attendance | 65,207 |
Kick-off: 6.45pm local
1 Real Madrid
Manager: Carlo Ancelotti
0 1.FC Union Berlin
Manager: Urs Fischer