Yellow cards
Top 50| # | Player | Club | YC |
|---|---|---|---|
| 1 |  L. Bonis | Larne | 9 |
| 2 |  M. Tolić | Slovan Bratislava | 6 |
| 3 |  K. Mac Allister | Union St. Gilloise | 5 |
| 4 |  T. Keskinen | HJK Helsinki | 5 |
| 5 |  M. Jurčevič | FK Partizan | 5 |
| 6 |  L. Gourna-Douath | Red Bull Salzburg | 5 |
| 7 |  Álvaro Fernández | Benfica | 5 |
| 8 |  A. Mac Allister | Liverpool | 5 |
| 9 |  Pedro Naressi | Ludogorets | 5 |
| 10 |  T. Hernández | AC Milan | 4 |
| 11 |  E. Camavinga | Real Madrid | 4 |
| 12 |  K. Bajrič | Slovan Bratislava | 4 |
| 13 |  Nuno Mendes | Paris Saint Germain | 4 |
| 14 |  L. Goretzka | Bayern München | 4 |
| 15 |  T. Meunier | Lille | 4 |
| 16 |  M. Vitík | Sparta Praha | 4 |
| 17 |  R. Bensebaïni | Borussia Dortmund | 4 |
| 18 |  Vinícius Júnior | Real Madrid | 4 |
| 19 |  Lucas Vázquez | Real Madrid | 4 |
| 20 |  Éderson | Atalanta | 4 |
