| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 04-Dec-2016 | Piers O'Conor | England | 28-Aug-1995 | 21(99) |
| 04-Sep-2016 | Elliot Daly | England | 08-Oct-1992 | 23(331) |
| 10-Sep-2016 | Thomas Young | Wales | 18-May-1992 | 24(115) |
| 04-Sep-2016 | Joshua Bassett | England | 17-Mar-1992 | 24(171) |
| 04-Sep-2016 | Dan Robson | England | 14-Mar-1992 | 24(174) |
| 04-Sep-2016 | Thomas Taylor | England | 11-Nov-1991 | 24(298) |
| 18-Sep-2016 | Alex Rieder | England | 03-Sep-1991 | 25(16) |
| 04-Sep-2016 | Nathan Hughes | England | 10-Jun-1991 | 25(87) |
| 04-Sep-2016 | Christian Wade | England | 15-May-1991 | 25(113) |
| 04-Sep-2016 | Joe Launchberry | England | 12-Apr-1991 | 25(146) |
| 10-Sep-2016 | Simon McIntyre | England | 19-Mar-1991 | 25(176) |
| 26-Mar-2017 | William Rowlands | Wales | 19-Sep-1991 | 25(189) |
| 10-Sep-2016 | Martin Moore | Ireland | 01-Mar-1991 | 25(194) |
| 04-Dec-2016 | Brendan Macken | Ireland | 19-May-1991 | 25(200) |
| 04-Sep-2016 | James Gaskell | England | 20-May-1990 | 26(108) |
| 04-Sep-2016 | Philip Swainston | England | 12-Dec-1989 | 26(267) |
| 18-Sep-2016 | Jake Cooper-Woolley | England | 18-Nov-1989 | 26(305) |
| 04-Sep-2016 | Sam Jones | England | 12-Sep-1989 | 26(358) |
| 04-Sep-2016 | Robert Miller | England | 05-Aug-1989 | 27(30) |
| 10-Sep-2016 | Matthew Symons | England | 04-Aug-1989 | 27(37) |
| 30-Oct-2016 | Kyle Eastmond | England | 17-Jul-1989 | 27(105) |
| 26-Feb-2017 | Willie Le Roux | South Africa | 18-Aug-1989 | 27(192) |
| 09-Oct-2016 | Tom Cruse | England | 30-Mar-1989 | 27(193) |
| 24-Dec-2016 | Kurtley Beale | Australia | 06-Jan-1989 | 27(352) |
| 10-Sep-2016 | Joe Simpson | England | 05-Jul-1988 | 28(67) |
| 04-Dec-2016 | Alapati Leiua | Samoa | 21-Sep-1988 | 28(74) |
| 18-Sep-2016 | Frank Halai | New Zealand | 06-Mar-1988 | 28(196) |
| 04-Sep-2016 | Danny Cipriani | England | 02-Nov-1987 | 28(307) |
| 04-Sep-2016 | Guy Thompson | England | 23-Jan-1987 | 29(225) |
| 02-Oct-2016 | Kearnan Myall | England | 15-Dec-1986 | 29(292) |
| 02-Oct-2016 | Ashley Johnson | South Africa | 16-May-1986 | 30(140) |
| 04-Sep-2016 | Matt Mullan | England | 15-Mar-1986 | 30(174) |
| 26-Mar-2017 | James Haskell | England | 02-Apr-1985 | 31(358) |
| 04-Sep-2016 | Jimmy Gopperth | New Zealand | 29-Jun-1983 | 33(68) |
| 12-Feb-2017 | Carlo Festuccia | Italy | 20-Jun-1980 | 36(237) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).