Schedule
| Date | Dead line | Home | Away | Group | Result | Points rule |
|---|---|---|---|---|---|---|
| 12/12/23 17:45 | 12/12/23 17:45 | RC Lens | FC Sevilla | Group B | --- | 4 - 6 - 4 |
| 12/12/23 17:45 | 12/12/23 17:45 | PSV Eindhoven | Arsenal FC | Group B | --- | 7 - 6 - 3 |
| 12/12/23 20:00 | 12/12/23 20:00 | FC Red Bull Salzburg | Benfica Lisbon | Group D | --- | 4 - 5 - 4 |
| 12/12/23 20:00 | 12/12/23 20:00 | Inter Milan | Real Sociedad | Group D | --- | 3 - 7 - 7 |
| 12/12/23 20:00 | 12/12/23 20:00 | 1. FC Union Berlin | Real Madrid | Group C | --- | 7 - 7 - 3 |
| 12/12/23 20:00 | 12/12/23 20:00 | SSC Napoli | Sporting Braga | Group C | --- | 3 - 7 - 7 |
| 12/12/23 20:00 | 12/12/23 20:00 | FC Copenhagen | Galatasaray Istanbul | Group A | --- | 4 - 5 - 4 |
| 12/12/23 20:00 | 12/12/23 20:00 | Manchester United | FC Bayern Munich | Group A | --- | 6 - 5 - 3 |
| 13/12/23 17:45 | 13/12/23 17:45 | Red Star Belgrad | Manchester City | Group G | --- | 7 - 7 - 3 |
| 13/12/23 17:45 | 13/12/23 17:45 | RB Leipzig | Young Boys Bern | Group G | --- | 3 - 7 - 7 |
| 13/12/23 20:00 | 13/12/23 20:00 | FC Porto | Schachtjor Donezk | Group H | --- | 3 - 7 - 7 |
| 13/12/23 20:00 | 13/12/23 20:00 | Royal Antwerp FC | FC Barcelona | Group H | --- | 7 - 7 - 3 |
| 13/12/23 20:00 | 13/12/23 20:00 | Borussia Dortmund | Paris St. Germain | Group F | --- | 4 - 5 - 4 |
| 13/12/23 20:00 | 13/12/23 20:00 | Newcastle United | AC Milan | Group F | --- | 4 - 6 - 5 |
| 13/12/23 20:00 | 13/12/23 20:00 | Celtic Glasgow | Feyenoord Rotterdam | Group E | --- | 5 - 5 - 4 |
| 13/12/23 20:00 | 13/12/23 20:00 | Atletico Madrid | Lazio Rom | Group E | --- | 3 - 7 - 7 |