*AC Milan 5-3 Stade Rennais
| 22.02.2024 | Stade Rennais | 3-2 | AC Milan | |
| 15.02.2024 | AC Milan | 3-0 | Stade Rennais | |
BSC Young Boys 2-4 Sporting Lisboa *
| 22.02.2024 | Sporting Lisboa | 1-1 | BSC Young Boys | |
| 15.02.2024 | BSC Young Boys | 1-3 | Sporting Lisboa | |
Shakhtar Donetsk 3-5 Olympique Marseille *
| 22.02.2024 | Olympique Marseille | 3-1 | Shakhtar Donetsk | |
| 15.02.2024 | Shakhtar Donetsk | 2-2 | Olympique Marseille | |
SC Braga 5-6 Qarabag FK *
| 22.02.2024 | Qarabag FK | 2-3 AET | SC Braga | |
| 15.02.2024 | SC Braga | 2-4 | Qarabag FK | |
RC Lens 2-3 SC Freiburg *
| 22.02.2024 | SC Freiburg | 3-2 AET | RC Lens | |
| 15.02.2024 | RC Lens | 0-0 | SC Freiburg | |
Galatasaray SK 4-6 Sparta Praha *
| 22.02.2024 | Sparta Praha | 4-1 | Galatasaray SK | |
| 15.02.2024 | Galatasaray SK | 3-2 | Sparta Praha | |
*SL Benfica 2-1 Toulouse FC
| 22.02.2024 | Toulouse FC | 0-0 | SL Benfica | |
| 15.02.2024 | SL Benfica | 2-1 | Toulouse FC | |