UEFA Champions League – Group stage
- Date & Time: 12/12/2023 – 21.00
- Match: FC Internationale Milano (ITA) vs. Real Sociedad de Futbol (ESP)
- Venue: Milan (ITA)
- Officials:
- Referee: Sandro Schärer (SUI)
- Assistant Referee 1: Bekim Zogaj (SUI)
- Assistant Referee 2: Jonas Erni (SUI)
- 4th official: Lionel Tschudi (SUI)
- Video Assistant Referee: Fedayi San (SUI) – in Nyon (SUI)
- Assistant Video Assistant Referee: Benoît Millot (FRA) – in Nyon (SUI)
UEFA Champions League – Group stage
- Date & Time: 13/12/2023 – 21.00
- Match: Club Atlético de Madrid (ESP) vs. S.S. Lazio (ITA)
- Venue: Madrid (ESP)
- Officials:
- Assistant Video Assistant Referee: Fedayi San (SUI) – in Nyon (SUI)