| Yellow | Clubs | VS Club | Date | Sections | |
|---|---|---|---|---|---|
| 7 | Wolfsberger AC | Dinamo Zagreb | 05-11-2020 | Group Section | Match details |
| 6 | Granada CF | Napoli | 25-02-2021 | Round of 32 | Match details |
| 6 | Feyenoord | Dinamo Zagreb | 03-12-2020 | Group Section | Match details |
| 6 | OGC Nice | Slavia Prague | 26-11-2020 | Group Section | Match details |
| 6 | Sivasspor | Maccabi Tel Aviv | 29-10-2020 | Group Section | Match details |
| 6 | CSKA Moscow | Wolfsberger AC | 22-10-2020 | Group Section | Match details |
| 5 | AS Roma | AFC Ajax | 15-04-2021 | Quarter-finals | Match details |
| 5 | Manchester United | Granada CF | 08-04-2021 | Quarter-finals | Match details |
| 5 | Rangers | Slavia Prague | 18-03-2021 | Round of 16 | Match details |
| 5 | Molde FK | Granada CF | 11-03-2021 | Round of 16 | Match details |
