Yellow cards
Top 50| # | Player | Club | YC |
|---|---|---|---|
| 1 |  N. Tagliafico | Ajax | 9 |
| 2 |  F. Stojković | FK Crvena Zvezda | 6 |
| 3 |  H. Ziyech | Ajax | 5 |
| 4 |  S. Huszti | Fehérvár FC | 4 |
| 5 |  S. Sanogo | BSC Young Boys | 4 |
| 6 |  N. Krstičić | FK Crvena Zvezda | 4 |
| 7 |  M. Pavkov | FK Crvena Zvezda | 4 |
| 8 |  Jardel | Benfica | 4 |
| 9 |  K. Galanopoulos | AEK Athens FC | 3 |
| 10 |  Rúben Dias | Benfica | 3 |
| 11 |  Leonardo de Matos Cruz | PAOK | 3 |
| 12 |  N. Otamendi | Manchester City | 3 |
| 13 |  M. Camara | BSC Young Boys | 3 |
| 14 |  N. Mazraoui | Ajax | 3 |
| 15 |  Son Heung-Min | Tottenham | 3 |
| 16 |  A. Robertson | Liverpool | 3 |
| 17 |  Sergio Busquets | Barcelona | 3 |
| 18 |  V. van Dijk | Liverpool | 3 |
| 19 |  Fabinho | Liverpool | 3 |
| 20 |  Nélson Semedo | Barcelona | 3 |
