| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 04-Feb-2017 |  Zander Fagerson | Scotland | Scotland | 19-Jan-1996 | 21(17) |
| 04-Feb-2017 |  Gary Ringrose | Ireland | Ireland | 26-Jan-1995 | 22(10) |
| 11-Mar-2017 |  Fabien Sanconnie | France | France | 21-Feb-1995 | 22(19) |
| 04-Feb-2017 |  Maro Itoje | England | England | 28-Oct-1994 | 22(100) |
| 04-Feb-2017 | Baptiste Serin | France | France | 20-Jun-1994 | 22(230) |
| 05-Feb-2017 |  Ross Moriarty | Wales | Wales | 18-Apr-1994 | 22(294) |
| 05-Feb-2017 | Nicky Smith | Wales | Wales | 07-Apr-1994 | 22(305) |
| 04-Feb-2017 | Gael Fickou | France | France | 26-Mar-1994 | 22(316) |
| 04-Feb-2017 | Jonny Gray | Scotland | Scotland | 14-Mar-1994 | 22(328) |
| 18-Mar-2017 | Anthony Watson | England | England | 26-Feb-1994 | 23(20) |
| 04-Feb-2017 | Huw Jones | Scotland | Scotland | 17-Dec-1993 | 23(49) |
| 04-Feb-2017 | Cyril Baille | France | France | 15-Sep-1993 | 23(142) |
| 04-Feb-2017 | Robbie Henshaw | Ireland | Ireland | 12-Jun-1993 | 23(237) |
| 11-Feb-2017 |  Angelo Esposito | Italy | Italy | 14-Jun-1993 | 23(242) |
| 05-Feb-2017 | Edoardo Padovani | Italy | Italy | 15-May-1993 | 23(266) |
| 25-Feb-2017 | Ali Price | Scotland | Scotland | 12-May-1993 | 23(289) |
| 05-Feb-2017 | Maxime Mbanda | Italy | Italy | 10-Apr-1993 | 23(301) |
| 11-Feb-2017 | Jack Nowell | England | England | 11-Apr-1993 | 23(306) |
| 26-Feb-2017 | Tommaso Allan | Italy | Italy | 26-Apr-1993 | 23(306) |
| 04-Feb-2017 | George Ford | England | England | 16-Mar-1993 | 23(325) |
| 26-Feb-2017 | Michele Campagnaro | Italy | Italy | 13-Mar-1993 | 23(350) |
| 11-Feb-2017 | Jack Clifford | England | England | 12-Feb-1993 | 23(364) |
| 05-Feb-2017 | Samson Lee | Wales | Wales | 30-Nov-1992 | 24(67) |
| 04-Feb-2017 | Tadhg Furlong | Ireland | Ireland | 14-Nov-1992 | 24(82) |
| 04-Feb-2017 | Elliot Daly | England | England | 08-Oct-1992 | 24(119) |
| 04-Feb-2017 | Finn Russell | Scotland | Scotland | 23-Sep-1992 | 24(134) |
| 18-Mar-2017 | Billy Vunipola | England | England | 03-Nov-1992 | 24(135) |
| 05-Feb-2017 | Carlo Canna | Italy | Italy | 25-Aug-1992 | 24(164) |
| 04-Feb-2017 | Stuart Hogg | Scotland | Scotland | 24-Jun-1992 | 24(225) |
| 04-Feb-2017 | Virimi Vakatawa | France | France | 01-May-1992 | 24(279) |
| 05-Feb-2017 | Braam Steyn | Italy | Italy | 02-May-1992 | 24(279) |
| 11-Feb-2017 | Tomas Francis | Wales | Wales | 27-Apr-1992 | 24(290) |
| 05-Feb-2017 | George North | Wales | Wales | 13-Apr-1992 | 24(298) |
| 11-Feb-2017 | Rob Evans | Wales | Wales | 14-Apr-1992 | 24(303) |
| 05-Feb-2017 | Giulio Bisegni | Italy | Italy | 04-Apr-1992 | 24(307) |
| 11-Feb-2017 | Niall Scannell | Ireland | Ireland | 08-Apr-1992 | 24(309) |
| 04-Feb-2017 | Allan Dell | Scotland | Scotland | 16-Mar-1992 | 24(325) |
| 04-Feb-2017 | Iain Henderson | Ireland | Ireland | 21-Feb-1992 | 24(349) |
| 04-Feb-2017 | Paddy Jackson | Ireland | Ireland | 05-Jan-1992 | 25(31) |
| 18-Mar-2017 | Kieran Marmion | Ireland | Ireland | 11-Feb-1992 | 25(36) |
| 04-Feb-2017 | Sebastien Vahaamahina | France | France | 21-Oct-1991 | 25(107) |
| 04-Feb-2017 | Hamish Watson | Scotland | Scotland | 15-Oct-1991 | 25(113) |
| 04-Feb-2017 | Owen Farrell | England | England | 21-Sep-1991 | 25(137) |
| 05-Feb-2017 | Jake Ball | Wales | Wales | 21-Jun-1991 | 25(230) |
| 04-Feb-2017 | Nathan Hughes | England | England | 10-Jun-1991 | 25(240) |
| 04-Feb-2017 | Jonathan Joseph | England | England | 21-May-1991 | 25(260) |
| 04-Feb-2017 | Joe Launchberry | England | England | 12-Apr-1991 | 25(299) |
| 05-Feb-2017 | Liam Williams | Wales | Wales | 09-Apr-1991 | 25(303) |
| 05-Feb-2017 | Marco Fuser | Italy | Italy | 09-Mar-1991 | 25(334) |
| 05-Feb-2017 | Tommaso Benvenuti | Italy | Italy | 12-Dec-1990 | 26(56) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).