| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 16-Dec-2017 | Ollie Thorley | England | 11-Sep-1996 | 21(96) |
| 16-Dec-2017 | William Safe | England | 11-Jun-1996 | 21(188) |
| 12-Oct-2017 | Jake Polledri | Italy | 08-Nov-1995 | 21(339) |
| 09-Dec-2017 | Ruan Ackermann | South Africa | 29-Dec-1995 | 21(346) |
| 19-Oct-2017 | Charlie Beckett | England | 03-Nov-1995 | 21(351) |
| 19-Oct-2017 | Ben Vellacott | Scotland | 28-Mar-1995 | 22(206) |
| 16-Dec-2017 | Cameron Orr | Australia | 02-Apr-1995 | 22(259) |
| 12-Oct-2017 | Tom Hudson | England | 08-Nov-1994 | 22(339) |
| 19-Oct-2017 | Lewis Ludlow | England | 11-Sep-1994 | 23(38) |
| 19-Oct-2017 | Billy Burns | Ireland | 13-Jun-1994 | 23(128) |
| 12-Oct-2017 | Henry Purdy | England | 21-May-1994 | 23(144) |
| 12-Oct-2017 | Callum Braley | Italy | 23-Mar-1994 | 23(203) |
| 12-Jan-2018 | Ross Moriarty | Wales | 18-Apr-1994 | 23(269) |
| 12-Oct-2017 | Freddie Clarke | England | 10-Oct-1992 | 25(2) |
| 31-Mar-2018 | Val Ruskin | Georgia | 12-Oct-1992 | 25(170) |
| 12-Oct-2017 | Owen Williams | Wales | 27-Feb-1992 | 25(228) |
| 12-Jan-2018 | Fraser Balmain | England | 16-Nov-1991 | 26(58) |
| 09-Dec-2017 | Andy Symons | England | 29-Jun-1991 | 26(164) |
| 19-Oct-2017 | Gareth Denman | England | 12-Nov-1990 | 26(342) |
| 19-Oct-2017 | Jason Woodward | New Zealand | 17-May-1990 | 27(155) |
| 12-Oct-2017 | Mark Atkinson | England | 08-Mar-1990 | 27(218) |
| 31-Mar-2018 | Tom Marshall | New Zealand | 05-Jul-1990 | 27(269) |
| 12-Oct-2017 | Jacob Rowan | England | 14-Jan-1990 | 27(271) |
| 12-Oct-2017 | Paddy McAllister | Ireland | 20-Jul-1989 | 28(84) |
| 09-Dec-2017 | Charles Sharples | England | 17-Aug-1989 | 28(114) |
| 12-Oct-2017 | Tom Savage | England | 18-Apr-1989 | 28(177) |
| 19-Oct-2017 | Henry Trinder | England | 14-Apr-1989 | 28(188) |
| 19-Oct-2017 | Ben Morgan | England | 18-Feb-1989 | 28(243) |
| 12-Oct-2017 | Billy Twelvetrees | England | 15-Nov-1988 | 28(331) |
| 19-Oct-2017 | James Hanson | Australia | 15-Sep-1988 | 29(34) |
| 16-Dec-2017 | Ed Slater | England | 01-Aug-1988 | 29(137) |
| 12-Oct-2017 | Tom Denton | England | 13-Feb-1988 | 29(242) |
| 12-Oct-2017 | Tevita Halaifonua | Tonga | 05-Jul-1987 | 30(100) |
| 12-Oct-2017 | Motu Matu'u | Samoa | 30-Apr-1987 | 30(166) |
| 09-Dec-2017 | Mariano Galarza | Argentina | 11-Dec-1986 | 30(364) |
| 31-Mar-2018 | Willi Heinz | England | 24-Nov-1986 | 31(128) |
| 12-Oct-2017 | Josh Hohneck | New Zealand | 06-Jan-1986 | 31(279) |
| 12-Jan-2018 | Jeremy Thrush | New Zealand | 19-Apr-1985 | 32(268) |
| 09-Dec-2017 | Richard Hibbard | Wales | 13-Dec-1983 | 33(362) |
| 09-Dec-2017 | John Afoa | New Zealand | 16-Oct-1983 | 34(55) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).