| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 01-Oct-2017 | Zac Mercer | England | 28-Jun-1997 | 20(95) |
| 24-Feb-2018 | Josh Bayliss | England | 18-Sep-1997 | 20(159) |
| 03-Sep-2017 | Max Clarke | England | 03-Oct-1996 | 20(335) |
| 24-Feb-2018 | Darren Atkins | England | 11-Feb-1997 | 21(13) |
| 15-Sep-2017 | Sam Underhill | England | 22-Jul-1996 | 21(55) |
| 23-Sep-2017 | Jack Walker | England | 06-May-1996 | 21(140) |
| 15-Sep-2017 | Charlie Ewels | England | 29-Jun-1995 | 22(79) |
| 03-Sep-2017 | Beno Obano | England | 25-Oct-1994 | 22(314) |
| 23-Mar-2018 | Tom Ellis | England | 29-Sep-1994 | 23(175) |
| 03-Sep-2017 | Anthony Watson | England | 26-Feb-1994 | 23(189) |
| 03-Sep-2017 | Elliot Stooke | England | 10-Sep-1993 | 23(358) |
| 23-Dec-2017 | Lucas Noguera Paz | Argentina | 05-Oct-1993 | 24(79) |
| 03-Sep-2017 | Tom Dunn | England | 12-Nov-1992 | 24(295) |
| 23-Sep-2017 | Nicholas Auterac | England | 12-Nov-1992 | 24(315) |
| 01-Oct-2017 | Henry Thomas | Wales | 30-Oct-1991 | 25(337) |
| 23-Dec-2017 | Michael van Vuuren | South Africa | 28-Sep-1991 | 26(87) |
| 03-Sep-2017 | Jonathan Joseph | England | 21-May-1991 | 26(106) |
| 03-Sep-2017 | Chris Cook | England | 16-Apr-1991 | 26(141) |
| 03-Sep-2017 | Toby Faletau | Wales | 12-Nov-1990 | 26(296) |
| 03-Sep-2017 | Kane Palma- Newport | England | 26-Oct-1990 | 26(313) |
| 23-Sep-2017 | Freddie Burns | England | 13-May-1990 | 27(133) |
| 19-Nov-2017 | Tom Homer | England | 01-Apr-1990 | 27(232) |
| 19-Nov-2017 | Jack Wilson | New Zealand | 02-Dec-1989 | 27(352) |
| 09-Feb-2018 | Will Hurrell | England | 15-Jan-1990 | 28(25) |
| 07-Apr-2018 | Shaun Knight | England | 16-Feb-1990 | 28(50) |
| 09-Feb-2018 | Max Lahiff | England | 09-Dec-1989 | 28(62) |
| 15-Sep-2017 | Ben Tapuai | Australia | 19-Jan-1989 | 28(239) |
| 23-Mar-2018 | Nathan Charles | Australia | 09-Jan-1989 | 29(73) |
| 29-Oct-2017 | Nathan Catt | England | 06-Jan-1988 | 29(297) |
| 03-Sep-2017 | Matthew Garvey | England | 23-Oct-1987 | 29(316) |
| 23-Sep-2017 | Paul William Grant | New Zealand | 27-Oct-1987 | 29(332) |
| 03-Sep-2017 | Semesa Rokoduguni | England | 28-Aug-1987 | 30(7) |
| 05-Jan-2018 | James Phillips | England | 27-Sep-1987 | 30(101) |
| 16-Feb-2018 | Cooper Vuna | Australia | 05-Jul-1987 | 30(227) |
| 03-Sep-2017 | Rhys Priestland | Wales | 07-Jan-1987 | 30(240) |
| 03-Sep-2017 | Matt Banahan | England | 30-Dec-1986 | 30(248) |
| 01-Oct-2017 | Aled Brew | Wales | 09-Aug-1986 | 31(54) |
| 16-Feb-2018 | Ross Batty | England | 20-Sep-1986 | 31(149) |
| 03-Sep-2017 | Francois Louw | South Africa | 15-Jun-1985 | 32(80) |
| 19-Nov-2017 | James Wilson | New Zealand | 07-Jul-1983 | 34(136) |
| 03-Sep-2017 | Luke Charteris | Wales | 09-Mar-1983 | 34(179) |
| 09-Sep-2017 | Anthony Perenise | Samoa | 18-Oct-1982 | 34(327) |
| 15-Sep-2017 | Kahn Fotuali'i | Samoa | 22-May-1982 | 35(117) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).