| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 25-Jun-2021 |  Emilian Gailleton | France U20 | France | 13-Jul-2003 | 17(348) |
| 25-Jun-2021 | Louis Bielle Biarrey | France U20 | France | 16-Jun-2003 | 18(10) |
| 19-Jun-2021 | Harri Williams | Wales U20 | Wales | 05-Apr-2003 | 18(76) |
| 01-Jul-2021 | Tom Florence | Wales U20 | Wales | 19-Mar-2003 | 18(105) |
| 19-Jun-2021 | Alex Samuel | Scotland U20 | Scotland | 27-Dec-2002 | 18(175) |
| 19-Jun-2021 | Efan Daniel | Wales U20 | Wales | 14-Dec-2002 | 18(188) |
| 19-Jun-2021 | Dafydd Jenkins | Wales U20 | Wales | 05-Dec-2002 | 18(197) |
| 19-Jun-2021 | Michael Gray | Scotland U20 | Scotland | 10-Oct-2002 | 18(253) |
| 25-Jun-2021 | Jack Boyle | Ireland U20 | Ireland | 03-Oct-2002 | 18(266) |
| 19-Jun-2021 | Tommaso Menoncello | Italy U20 | Italy | 20-Aug-2002 | 18(304) |
| 19-Jun-2021 | Leo Barre | France U20 | France | 20-Aug-2002 | 18(304) |
| 19-Jun-2021 | Eddie James | Wales U20 | Wales | 10-Aug-2002 | 18(314) |
| 19-Jun-2021 | Max Williamson | Scotland U20 | Scotland | 05-Aug-2002 | 18(319) |
| 25-Jun-2021 | Ollie Leatherbarrow | Scotland U20 | Scotland | 04-Aug-2002 | 18(326) |
| 25-Jun-2021 | Giulio Marucchini | Italy U20 | Italy | 10-Jul-2002 | 18(351) |
| 01-Jul-2021 | Victor Montgaillard | France U20 | France | 16-Jul-2002 | 18(351) |
| 25-Jun-2021 | Matteo Garcia | France U20 | France | 08-Jul-2002 | 18(353) |
| 25-Jun-2021 | Lorenzo Pani | Italy U20 | Italy | 04-Jul-2002 | 18(357) |
| 25-Jun-2021 | Christian Townsend | Scotland U20 | Scotland | 01-Jul-2002 | 18(360) |
| 19-Jun-2021 | Patrick Harrison | Scotland U20 | Scotland | 18-Jun-2002 | 19(1) |
| 19-Jun-2021 | Flavio Pio Vaccari | Italy U20 | Italy | 16-Jun-2002 | 19(3) |
| 19-Jun-2021 | Murray Redpath | Scotland U20 | Scotland | 16-Jun-2002 | 19(3) |
| 19-Jun-2021 | Joe Hawkins | Wales U20 | Wales | 11-Jun-2002 | 19(8) |
| 25-Jun-2021 | Michael Jones | Scotland U20 | Scotland | 08-Jun-2002 | 19(17) |
| 19-Jun-2021 | Theo Ntamack | France U20 | France | 29-May-2002 | 19(21) |
| 19-Jun-2021 | Fin Smith | England U20 | England | 11-May-2002 | 19(39) |
| 25-Jun-2021 | Riccardo Andreoli | Italy U20 | Italy | 16-May-2002 | 19(40) |
| 01-Jul-2021 | Ollie Burrows | Wales U20 | Wales | 16-May-2002 | 19(46) |
| 19-Jun-2021 | Luca Rizzoli | Italy U20 | Italy | 03-May-2002 | 19(47) |
| 01-Jul-2021 | Nolann Le Garrec | France U20 | France | 14-May-2002 | 19(48) |
| 19-Jun-2021 | Deago Bailey | England U20 | England | 01-May-2002 | 19(49) |
| 01-Jul-2021 | Tom Litchfield | England U20 | England | 20-Apr-2002 | 19(72) |
| 19-Jun-2021 | Ewan Richards | England U20 | England | 05-Apr-2002 | 19(75) |
| 19-Jun-2021 | Enzo Reybier | France U20 | France | 04-Apr-2002 | 19(76) |
| 25-Jun-2021 | Alessandro Garbisi | Italy U20 | Italy | 01-Apr-2002 | 19(85) |
| 25-Jun-2021 | Emeka Ilione | England U20 | England | 20-Mar-2002 | 19(97) |
| 19-Jun-2021 | Leonardo Marin | Italy U20 | Italy | 23-Feb-2002 | 19(116) |
| 19-Jun-2021 | Ross Michael Vintcent | Italy U20 | Italy | 23-Feb-2002 | 19(116) |
| 19-Jun-2021 | Ollie Frostick | Scotland U20 | Scotland | 05-Feb-2002 | 19(134) |
| 19-Jun-2021 | Joe Peard | Wales U20 | Wales | 02-Feb-2002 | 19(137) |
| 19-Jun-2021 | Connor Sa | France U20 | France | 22-Jan-2002 | 19(148) |
| 19-Jun-2021 | Giacomo Ferrari | Italy U20 | Italy | 22-Jan-2002 | 19(148) |
| 19-Jun-2021 | Killian Tixeront | France U20 | France | 22-Jan-2002 | 19(148) |
| 19-Jun-2021 | Ollie Melville | Scotland U20 | Scotland | 19-Jan-2002 | 19(151) |
| 19-Jun-2021 | Lucas Brooke | England U20 | England | 18-Jan-2002 | 19(152) |
| 19-Jun-2021 | Alex Mann | Wales U20 | Wales | 06-Jan-2002 | 19(164) |
| 19-Jun-2021 | Mark Morrissey | Ireland U20 | Ireland | 03-Jan-2002 | 19(167) |
| 19-Jun-2021 | Nathan Evans | Wales U20 | Wales | 03-Jan-2002 | 19(167) |
| 01-Jul-2021 | Christ Tshiunza | Wales U20 | Wales | 09-Jan-2002 | 19(173) |
| 25-Jun-2021 | Thomas Moukoro Abouem | France U20 | France | 01-Jan-2002 | 19(175) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).