| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 14-Jan-2017 | William Evans | England | 28-Jan-1997 | 19(351) |
| 10-Dec-2016 | George Worth | England | 08-Oct-1996 | 20(63) |
| 14-Oct-2016 | Ellis Genge | England | 16-Feb-1995 | 21(241) |
| 14-Oct-2016 | Dominic Barrow | England | 19-Mar-1993 | 23(209) |
| 14-Oct-2016 | Owen Williams | Wales | 27-Feb-1992 | 24(230) |
| 17-Dec-2016 | Luke Hamilton | Scotland | 07-Jan-1992 | 24(345) |
| 17-Dec-2016 | Jack Roberts | Wales | 20-Nov-1991 | 25(28) |
| 14-Jan-2017 | Mike Williams | England | 04-Nov-1991 | 25(72) |
| 10-Dec-2016 | Manu Tuilagi | England | 18-May-1991 | 25(207) |
| 14-Oct-2016 | Tom Brady | England | 10-Feb-1991 | 25(247) |
| 14-Oct-2016 | Telusa Veainu | Tonga | 26-Dec-1990 | 25(293) |
| 14-Oct-2016 | Locky McCaffrey | Australia | 19-Mar-1990 | 26(210) |
| 10-Dec-2016 | Freddie Burns | England | 13-May-1990 | 26(212) |
| 14-Oct-2016 | Matt Toomua | Australia | 02-Jan-1990 | 26(286) |
| 14-Oct-2016 | Graham Kitchener | England | 29-Sep-1989 | 27(15) |
| 14-Oct-2016 | Ben Youngs | England | 05-Sep-1989 | 27(39) |
| 10-Dec-2016 | Greg Bateman | England | 20-Jun-1989 | 27(173) |
| 10-Dec-2016 | Peter Betham | Australia | 06-Jan-1989 | 27(338) |
| 23-Oct-2016 | Ed Slater | England | 01-Aug-1988 | 28(83) |
| 14-Oct-2016 | Adam Thompstone | England | 04-Sep-1987 | 29(41) |
| 14-Oct-2016 | Dan Cole | England | 09-May-1987 | 29(159) |
| 14-Oct-2016 | Michael Fitzgerald | New Zealand | 08-Feb-1987 | 29(249) |
| 14-Oct-2016 | Tom Youngs | England | 28-Jan-1987 | 29(260) |
| 10-Dec-2016 | Logoviki Mulipola | Samoa | 11-Mar-1987 | 29(275) |
| 17-Dec-2016 | Patric Cilliers | South Africa | 03-Mar-1987 | 29(290) |
| 23-Oct-2016 | JP Pietersen | South Africa | 12-Jul-1986 | 30(104) |
| 14-Oct-2016 | Matthew Tait | England | 06-Feb-1986 | 30(251) |
| 14-Jan-2017 | Matt Smith | England | 15-Nov-1985 | 31(60) |
| 14-Oct-2016 | Brendan O'Connor | New Zealand | 31-May-1983 | 33(137) |
| 23-Oct-2016 | Marcos Ayerza | Argentina | 12-Jan-1983 | 33(285) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).