| # | Player | Position | Citizenship | Club | Born | Value |
|---|---|---|---|---|---|---|
| 1 |  Ferland Mendy | Defender - Left-Back | France Senegal | Real Madrid | 1995 | €14.0m |
| 2 |  Emerson | Defender - Left-Back | Italy Brazil | Olympique Marseille | 1994 | €10.0m |
| 3 |  Nuno Santos | Defender - Left-Back | Portugal | Sporting CP | 1995 | €9.0m |
| 4 |  José Gayà | Defender - Left-Back | Spain | Valencia CF | 1995 | €9.0m |
| 5 |  Ramy Bensebaini | Defender - Left-Back | Algeria | Borussia Dortmund | 1995 | €7.0m |
| 6 |  Matheus Reis | Defender - Left-Back | Brazil | Sporting CP | 1995 | €6.0m |
| 7 |  Konstantinos Tsimikas | Defender - Left-Back | Greece | AS Roma | 1996 | €18.0m |
| 8 |  Ulisses Garcia | Defender - Left-Back | Switzerland Cape Verde | Olympique Marseille | 1996 | €5.0m |
| 9 |  Moisés | Defender - Left-Back | Brazil | CSKA Moscow | 1995 | €5.0m |
| 10 |  Matt Targett | Defender - Left-Back | England Scotland | Middlesbrough FC | 1995 | €5.0m |
| 11 |  Javi Galán | Defender - Left-Back | Spain | Atlético de Madrid | 1994 | €4.0m |
| 12 |  Lucas Olaza | Defender - Left-Back | Uruguay Spain | FC Krasnodar | 1994 | €4.0m |
| 13 |  Lucas Hernández | Defender - Left-Back | France Spain | Paris Saint-Germain | 1996 | €25.0m |
| 14 |  Alejandro Grimaldo | Defender - Left-Back | Spain | Bayer 04 Leverkusen | 1995 | €30.0m |
| 15 |  Joakim Mæhle | Defender - Left-Back | Denmark | VfL Wolfsburg | 1997 | €14.0m |
| 16 |  Lucas Digne | Defender - Left-Back | France | Aston Villa | 1993 | €10.0m |
| 17 |  Rico Henry | Defender - Left-Back | England Jamaica | Brentford FC | 1997 | €15.0m |
| 18 |  Douglas Santos | Defender - Left-Back | Brazil Russia | Zenit St. Petersburg | 1994 | €9.0m |
| 19 |  Kieran Tierney | Defender - Left-Back | Scotland Isle of Man | Celtic FC | 1997 | €9.0m |
| 20 |  Ben Chilwell | Defender - Left-Back | England New Zealand | RC Strasbourg Alsace | 1996 | €15.0m |
| 21 |  Robin Gosens | Defender - Left-Back | Germany Netherlands | ACF Fiorentina | 1994 | €8.0m |
| 22 |  Junior Firpo | Defender - Left-Back | Dominican Republic Spain | Real Betis Balompié | 1996 | €8.0m |
| 23 |  Guilherme Arana | Defender - Left-Back | Brazil | Clube Atlético Mineiro | 1997 | €8.0m |
| 24 |  Raphaël Guerreiro | Defender - Left-Back | Portugal France | Bayern Munich | 1993 | €8.0m |
| 25 |  Aarón Martín | Defender - Left-Back | Spain | Genoa CFC | 1997 | €6.5m |
| 26 |  Juninho Capixaba | Defender - Left-Back | Brazil | Red Bull Bragantino | 1997 | €6.0m |
| 27 |  Sergio Reguilón | Defender - Left-Back | Spain | Without Club | 1996 | €6.0m |
| 28 |  Ayrton Lucas | Defender - Left-Back | Brazil | CR Flamengo | 1997 | €6.0m |
| 29 |  Andrew Robertson | Defender - Left-Back | Scotland | Liverpool FC | 1994 | €18.0m |
| 30 |  Reinildo Mandava | Defender - Left-Back | Mozambique | Sunderland AFC | 1994 | €5.0m |