| MD | Players | Clubs | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 26-Jul-2017 |  Matthijs de Ligt | AFC Ajax | Netherlands | 12-Aug-1999 | 17(349) |
| 11-Jul-2017 | Vasilije Terzic | FK Buducnost | Montenegro | 12-May-1999 | 18(61) |
| 12-Jul-2017 |  Sebastian Szymanski | Legia Warsaw | Poland | 10-May-1999 | 18(64) |
| 26-Jul-2017 | Justin Kluivert | AFC Ajax | Netherlands | 05-May-1999 | 18(83) |
| 19-Jul-2017 | Hannes Wolf | Salzburg | Austria | 16-Apr-1999 | 18(95) |
| 12-Jul-2017 | Teddy Bergqvist | Malmo FF | Sweden | 16-Mar-1999 | 18(119) |
| 19-Jul-2017 | Joel Mattsson | IFK Mariehamm | Finland | 17-Mar-1999 | 18(125) |
| 18-Jul-2017 | Akaki Ninua | FC Samtredia | Georgia | 17-Feb-1999 | 18(152) |
| 12-Jul-2017 | Vitalie Damascan | FC Sheriff Tiraspol | Moldova | 24-Jan-1999 | 18(170) |
| 26-Jul-2017 |  Malang Sarr | OGC Nice | France | 23-Jan-1999 | 18(185) |
| 22-Aug-2017 | Igniatius Ganago | OGC Nice | Cameroon | 16-Feb-1999 | 18(188) |
| 22-Aug-2017 |  Tony Ralston | Celtic | Scotland | 16-Nov-1998 | 18(280) |
| 26-Jul-2017 | Jordan Lotomba | BSC Young Boys | Switzerland | 29-Sep-1998 | 18(301) |
| 15-Aug-2017 |  Trent Alexander-Arnold | Liverpool | England | 07-Oct-1998 | 18(313) |
| 02-Aug-2017 | Dennis Man | Steaua Bucharest | Romania | 26-Aug-1998 | 18(342) |
| 25-Jul-2017 | Panagiotis Retsos | Olympiakos | Greece | 09-Aug-1998 | 18(351) |
| 18-Jul-2017 | Danilo Markovic | FK Buducnost | Montenegro | 15-Jul-1998 | 19(3) |
| 12-Jul-2017 | Eligijus Jankauskas | MSK Zilina | Lithuania | 22-Jun-1998 | 19(20) |
| 19-Jul-2017 | Balint Tomosvari | Budapest Honved | Hungary | 14-Jun-1998 | 19(35) |
| 12-Jul-2017 | Kristian Vallo | MSK Zilina | Slovakia | 02-Jun-1998 | 19(40) |
| 23-Aug-2017 |  Dennis Geiger | TSG 1899 Hoffenheim | Germany | 10-Jun-1998 | 19(74) |
| 26-Jul-2017 | Mergim Berisha | Salzburg | Kosovo | 11-May-1998 | 19(76) |
| 26-Jul-2017 | Kristoffer Ajer | Celtic | Norway | 17-Apr-1998 | 19(100) |
| 25-Jul-2017 |  Fedor Chalov | CSKA Moscow | Russia | 10-Apr-1998 | 19(106) |
| 26-Jul-2017 | Florinel Coman | Viitorul Constanta | Romania | 10-Apr-1998 | 19(107) |
| 02-Aug-2017 |  Ahmed Touba | Club Brugge | Algeria | 13-Mar-1998 | 19(142) |
| 27-Jun-2017 | Otto John | Trepca 89 | Nigeria | 25-Jan-1998 | 19(153) |
| 12-Jul-2017 | Nardin Mulahusejnovic | HSK Zrinjski Mostar | Bosnia and Herzegovina | 09-Feb-1998 | 19(153) |
| 12-Jul-2017 | Marijan Cavar | HSK Zrinjski Mostar | Bosnia and Herzegovina | 02-Feb-1998 | 19(160) |
| 19-Jul-2017 | Amadou Haidara | Salzburg | Mali | 31-Jan-1998 | 19(169) |
| 12-Jul-2017 | Aapo Maenpaa | IFK Mariehamm | Finland | 14-Jan-1998 | 19(179) |
| 02-Aug-2017 | Konstantinos Galanopoulos | AEK Athens | Greece | 28-Dec-1997 | 19(217) |
| 19-Jul-2017 | Kundai Benyu | Celtic | England | 12-Dec-1997 | 19(219) |
| 26-Jul-2017 | Emmanuel Dennis | Club Brugge | Nigeria | 15-Nov-1997 | 19(253) |
| 26-Jul-2017 |  Viktor Tsyhankov | Dynamo Kyiv | Ukraine | 15-Nov-1997 | 19(253) |
| 16-Aug-2017 | Olivier Boscagli | OGC Nice | France | 18-Nov-1997 | 19(271) |
| 28-Jun-2017 | Paul Smyth | Linfield | Northern Ireland | 10-Sep-1997 | 19(291) |
| 26-Jul-2017 | Kasper Dolberg | AFC Ajax | Denmark | 06-Oct-1997 | 19(293) |
| 26-Jul-2017 | Konrad Michalak | Legia Warsaw | Poland | 19-Sep-1997 | 19(310) |
| 15-Aug-2017 | Dominic Solanke | Liverpool | England | 14-Sep-1997 | 19(335) |
| 27-Jun-2017 | Joseph Mbong | Hibernians FC | Malta | 15-Jul-1997 | 19(347) |
| 28-Jun-2017 | Lorenzo Lunadei | La Fiorita | San Marino | 12-Jul-1997 | 19(351) |
| 27-Jun-2017 | Ryan Pryce | The New Saints FC | England | 30-Jun-1997 | 19(362) |
| 11-Jul-2017 | Mahir Madatov | Qarabag FK | Azerbaijan | 01-Jul-1997 | 20(10) |
| 26-Jul-2017 | Alexandru Cicaldau | Viitorul Constanta | Romania | 08-Jul-1997 | 20(18) |
| 26-Jul-2017 | Bassem Srarfi | OGC Nice | Tunisia | 25-Jun-1997 | 20(31) |
| 22-Aug-2017 |  Amadou Diawara | Napoli | Guinea | 17-Jul-1997 | 20(36) |
| 14-Jul-2017 | Kieran Tierney | Celtic | Scotland | 05-Jun-1997 | 20(39) |
| 19-Jul-2017 | Marc Nordqvist | IFK Mariehamm | Finland | 01-Jun-1997 | 20(48) |
| 12-Jul-2017 | Luka Simunovic | FK Spartaks Jurmala | Croatia | 24-May-1997 | 20(49) |
MD = Match date,
DOB = Date Of Birth,
A(D) = Age(Days).