| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 22-Oct-2016 | Nick Tompkins | Wales | 16-Feb-1995 | 21(249) |
| 15-Oct-2016 | Maro Itoje | England | 28-Oct-1994 | 21(353) |
| 15-Jan-2017 | Nathan Earle | England | 25-Sep-1994 | 22(113) |
| 15-Jan-2017 | Alex Lozowski | England | 30-Jun-1993 | 23(199) |
| 15-Oct-2016 | Billy Vunipola | England | 03-Nov-1992 | 23(346) |
| 15-Oct-2016 | Owen Farrell | England | 21-Sep-1991 | 25(25) |
| 15-Oct-2016 | Makovina Vunipola | England | 13-Jan-1991 | 25(276) |
| 15-Oct-2016 | Jackson Wray | England | 10-Nov-1990 | 25(340) |
| 15-Oct-2016 | Jamie George | England | 20-Oct-1990 | 25(361) |
| 15-Oct-2016 | George Kruis | England | 22-Feb-1990 | 26(236) |
| 22-Apr-2017 | Vincent Koch | South Africa | 13-Mar-1990 | 27(40) |
| 15-Jan-2017 | Richard Barrington | England | 24-Sep-1989 | 27(113) |
| 15-Oct-2016 | Sean Maitland | Scotland | 14-Sep-1988 | 28(31) |
| 15-Oct-2016 | Alex Goode | England | 07-May-1988 | 28(161) |
| 15-Oct-2016 | Juan Figallo | Argentina | 25-Mar-1988 | 28(204) |
| 22-Oct-2016 | Michael Rhodes | South Africa | 19-Dec-1987 | 28(308) |
| 15-Jan-2017 | Chris Ashton | England | 29-Mar-1987 | 29(293) |
| 15-Oct-2016 | Bradley Barritt | England | 07-Aug-1986 | 30(70) |
| 15-Oct-2016 | Marcelo Bosch | Argentina | 07-Jan-1984 | 32(282) |
| 15-Oct-2016 | Chris Wyles | United States | 13-Sep-1983 | 33(33) |
| 15-Oct-2016 | Richard Wigglesworth | England | 09-Jun-1983 | 33(129) |
| 15-Oct-2016 | Schalk Burger | South Africa | 13-Apr-1983 | 33(186) |
| 22-Oct-2016 | James Hamilton | Scotland | 17-Nov-1982 | 33(340) |
| 10-Dec-2016 | Kelly Brown | Scotland | 08-Jun-1982 | 34(186) |
| 22-Oct-2016 | Schalk Brits | South Africa | 16-May-1981 | 35(160) |
| 10-Dec-2016 | Petrus Du Plessis | England | 31-May-1981 | 35(194) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).