| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 05-Feb-2010 |  Macauley Cook | Wales U20 | Wales | 31-Dec-1991 | 18(37) |
| 26-Feb-2010 | Rhodri Jones | Wales U20 | Wales | 23-Dec-1991 | 18(66) |
| 12-Feb-2010 | George Hunter | Scotland U20 | Scotland | 20-Nov-1991 | 18(85) |
| 12-Mar-2010 | Vittorio Callori Di Vignale | Italy U20 | Italy | 10-Nov-1991 | 18(123) |
| 05-Feb-2010 | Owen Williams | Wales U20 | Wales | 02-Oct-1991 | 18(127) |
| 12-Feb-2010 | Charles Matthews | England U20 | England | 23-Jul-1991 | 18(205) |
| 05-Feb-2010 | Andrew Conway | Ireland U20 | Ireland | 11-Jul-1991 | 18(210) |
| 12-Feb-2010 | Piermaria Leso | Italy U20 | Italy | 13-Jun-1991 | 18(245) |
| 19-Mar-2010 | Edward Siggery | Wales U20 | Wales | 18-Jul-1991 | 18(245) |
| 12-Mar-2010 | Marcus Watson | England U20 | England | 27-Jun-1991 | 18(259) |
| 05-Feb-2010 | Brendan Macken | Ireland U20 | Ireland | 19-May-1991 | 18(263) |
| 12-Feb-2010 | Jonathan Joseph | England U20 | England | 21-May-1991 | 18(268) |
| 05-Feb-2010 | Niall Annett | Ireland U20 | Ireland | 07-May-1991 | 18(275) |
| 05-Feb-2010 | Alex Gray | England U20 | England | 01-May-1991 | 18(281) |
| 19-Mar-2010 | Guglielmo Palazzani | Italy U20 | Italy | 11-Apr-1991 | 18(343) |
| 26-Feb-2010 | Ben John | Wales U20 | Wales | 28-Feb-1991 | 18(364) |
| 12-Feb-2010 | Lloyd Peers | Wales U20 | Wales | 02-Feb-1991 | 19(10) |
| 26-Feb-2010 | Jean Marc Doussain | France U20 | France | 12-Feb-1991 | 19(14) |
| 12-Mar-2010 | Tiernan O'Halloran | Ireland U20 | Ireland | 26-Feb-1991 | 19(14) |
| 05-Feb-2010 | Colin Phillips | Scotland U20 | Scotland | 20-Jan-1991 | 19(16) |
| 05-Feb-2010 | Giovanni Alberghini | Italy U20 | Italy | 03-Jan-1991 | 19(33) |
| 26-Feb-2010 | Jack Wallace | England U20 | England | 22-Jan-1991 | 19(35) |
| 05-Feb-2010 | Josh Navidi | Wales U20 | Wales | 30-Dec-1990 | 19(37) |
| 05-Feb-2010 | Dan Fish | Wales U20 | Wales | 19-Dec-1990 | 19(48) |
| 05-Feb-2010 | Tommaso Benvenuti | Italy U20 | Italy | 12-Dec-1990 | 19(55) |
| 05-Feb-2010 | Patrick Butler | Ireland U20 | Ireland | 01-Dec-1990 | 19(66) |
| 12-Feb-2010 | Jackson Wray | England U20 | England | 10-Nov-1990 | 19(94) |
| 19-Mar-2010 | Alberto Chillon | Italy U20 | Italy | 05-Dec-1990 | 19(104) |
| 26-Feb-2010 | Toby Faletau | Wales U20 | Wales | 12-Nov-1990 | 19(106) |
| 05-Feb-2010 | Jamie George | England U20 | England | 20-Oct-1990 | 19(108) |
| 05-Feb-2010 | Tom Catterick | England U20 | England | 18-Oct-1990 | 19(110) |
| 05-Feb-2010 | Rhys Ruddock | Ireland U20 | Ireland | 13-Oct-1990 | 19(115) |
| 05-Feb-2010 | Alun Walker | Scotland U20 | Scotland | 28-Sep-1990 | 19(130) |
| 05-Feb-2010 | Tommaso Iannone | Italy U20 | Italy | 16-Sep-1990 | 19(142) |
| 05-Feb-2010 | Nicola Belardo | Italy U20 | Italy | 14-Sep-1990 | 19(144) |
| 05-Feb-2010 | Filippo Ferrarini | Italy U20 | Italy | 07-Sep-1990 | 19(151) |
| 12-Feb-2010 | Stefano Scanferla | Italy U20 | Italy | 11-Sep-1990 | 19(154) |
| 05-Feb-2010 | Kristian Phillips | Wales U20 | Wales | 02-Sep-1990 | 19(156) |
| 26-Feb-2010 | Lee Imiolek | England U20 | England | 21-Sep-1990 | 19(158) |
| 05-Feb-2010 | Matthew Jarvis | Wales U20 | Wales | 25-Aug-1990 | 19(164) |
| 05-Feb-2010 | Eddy Ben Arous | France U20 | France | 25-Aug-1990 | 19(164) |
| 12-Mar-2010 | Jamie Gibson | England U20 | England | 27-Sep-1990 | 19(166) |
| 21-Mar-2010 | Benjamin Petre | France U20 | France | 04-Oct-1990 | 19(168) |
| 05-Feb-2010 | James Thomas | Wales U20 | Wales | 17-Aug-1990 | 19(172) |
| 19-Mar-2010 | Alberto Zorzi | Italy U20 | Italy | 24-Sep-1990 | 19(176) |
| 05-Feb-2010 | Oliver Grove | Scotland U20 | Scotland | 13-Aug-1990 | 19(176) |
| 05-Feb-2010 | Grant Gilchrist | Scotland U20 | Scotland | 09-Aug-1990 | 19(180) |
| 05-Feb-2010 | Stuart McInally | Scotland U20 | Scotland | 09-Aug-1990 | 19(180) |
| 05-Feb-2010 | Douglas Fife | Scotland U20 | Scotland | 08-Aug-1990 | 19(181) |
| 19-Mar-2010 | Eoin Griffin | Ireland U20 | Ireland | 18-Sep-1990 | 19(182) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).