| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 08-Jun-2024 |  Suleiman Hartzenberg | Western Stormers | South Africa | 20-May-2003 | 21(20) |
| 08-Jun-2024 | Alessandro Izekor | Benetton Treviso | Italy | 05-Mar-2003 | 21(96) |
| 08-Jun-2024 | Tommaso Menoncello | Benetton Treviso | Italy | 20-Aug-2002 | 21(293) |
| 08-Jun-2024 | Sacha Mngomezulu | Western Stormers | South Africa | 22-Feb-2002 | 22(107) |
| 08-Jun-2024 |  Jamie Osborne | Leinster | Ireland | 16-Nov-2001 | 22(205) |
| 08-Jun-2024 |  Harry Sheridan | Ulster | Ireland | 21-Sep-2001 | 22(261) |
| 08-Jun-2024 | Joe McCarthy | Leinster | Ireland | 26-Mar-2001 | 23(74) |
| 08-Jun-2024 | David McCann | Ulster | Ireland | 13-Jun-2000 | 23(360) |
| 08-Jun-2024 | Sebastien de Klerk | Bulls | South Africa | 05-Apr-2000 | 24(64) |
| 08-Jun-2024 | Rory Darge | Glasgow Warriors | Scotland | 23-Feb-2000 | 24(106) |
| 08-Jun-2024 | Cormac Izuchukwu | Ulster | Ireland | 28-Jan-2000 | 24(132) |
| 07-Jun-2024 | Jac Morgan | Ospreys | Wales | 21-Jan-2000 | 24(138) |
| 07-Jun-2024 |  Jack Crowley | Munster | Ireland | 13-Jan-2000 | 24(146) |
| 08-Jun-2024 | Stewart Moore | Ulster | Ireland | 08-Aug-1999 | 24(305) |
| 08-Jun-2024 | Ryan Baird | Leinster | Ireland | 26-Jul-1999 | 24(318) |
| 07-Jun-2024 | Dewi Lake | Ospreys | Wales | 16-May-1999 | 25(23) |
| 08-Jun-2024 | Thomas Gallo | Benetton Treviso | Argentina | 30-Apr-1999 | 25(40) |
| 07-Jun-2024 | Craig Casey | Munster | Ireland | 19-Apr-1999 | 25(50) |
| 08-Jun-2024 | David Kriel | Bulls | South Africa | 15-Feb-1999 | 25(114) |
| 07-Jun-2024 | John Hodnett | Munster | England | 10-Jan-1999 | 25(149) |
| 08-Jun-2024 | Tom O'Toole | Ulster | Ireland | 23-Sep-1998 | 25(259) |
| 08-Jun-2024 | Tom Jordan | Glasgow Warriors | Scotland | 18-Sep-1998 | 25(264) |
| 08-Jun-2024 | Dan Sheehan | Leinster | Ireland | 17-Sep-1998 | 25(265) |
| 08-Jun-2024 | Ben Loader | Western Stormers | England | 08-Sep-1998 | 25(274) |
| 07-Jun-2024 | Morgan Morris | Ospreys | Wales | 28-Aug-1998 | 25(284) |
| 08-Jun-2024 | Michael Lowry | Ulster | Ireland | 20-Aug-1998 | 25(293) |
| 08-Jun-2024 | Ruan Nortje | Bulls | South Africa | 25-Jul-1998 | 25(319) |
| 08-Jun-2024 | Matt Fagerson | Glasgow Warriors | Scotland | 16-Jul-1998 | 25(328) |
| 08-Jun-2024 | Michele Lamaro | Benetton Treviso | Italy | 03-Jun-1998 | 26(6) |
| 08-Jun-2024 | Edoardo Iachizzi | Benetton Treviso | Italy | 26-May-1998 | 26(14) |
| 07-Jun-2024 | Sean O'Brien | Munster | Ireland | 12-May-1998 | 26(27) |
| 08-Jun-2024 | Ruan Vermaak | Bulls | South Africa | 01-May-1998 | 26(39) |
| 08-Jun-2024 | Ben-Jason Dixon | Western Stormers | South Africa | 29-Apr-1998 | 26(41) |
| 08-Jun-2024 | Caelan Doris | Leinster | Ireland | 02-Apr-1998 | 26(68) |
| 08-Jun-2024 | Salmaan Moerat | Western Stormers | South Africa | 06-Mar-1998 | 26(95) |
| 07-Jun-2024 | Reuben Morgan-Williams | Ospreys | Wales | 02-Feb-1998 | 26(126) |
| 07-Jun-2024 | Keelan Giles | Ospreys | Wales | 29-Jan-1998 | 26(130) |
| 07-Jun-2024 | Gavin Coombes | Munster | Ireland | 11-Dec-1997 | 26(179) |
| 08-Jun-2024 | Ruben van Heerden | Western Stormers | South Africa | 27-Oct-1997 | 26(225) |
| 07-Jun-2024 | James Ratti | Ospreys | Wales | 14-Oct-1997 | 26(237) |
| 08-Jun-2024 | Josh Mckay | Glasgow Warriors | New Zealand | 10-Oct-1997 | 26(242) |
| 08-Jun-2024 | Hacjivah Dayimani | Western Stormers | South Africa | 23-Sep-1997 | 26(259) |
| 08-Jun-2024 | Tomas Albornoz | Benetton Treviso | Argentina | 17-Sep-1997 | 26(265) |
| 07-Jun-2024 | Calvin Nash | Munster | Ireland | 08-Aug-1997 | 26(304) |
| 08-Jun-2024 | Immanuel Libbok | Western Stormers | South Africa | 15-Jul-1997 | 26(329) |
| 08-Jun-2024 | Jordan Larmour | Leinster | Ireland | 10-Jun-1997 | 26(364) |
| 08-Jun-2024 | Embrose Papier | Bulls | South Africa | 25-Apr-1997 | 27(44) |
| 07-Jun-2024 | Kieran Williams | Ospreys | Wales | 12-Apr-1997 | 27(56) |
| 08-Jun-2024 | Gerhardus Steenkamp | Bulls | South Africa | 09-Apr-1997 | 27(60) |
| 08-Jun-2024 | Sione Tuipulotu | Glasgow Warriors | Australia | 12-Feb-1997 | 27(116) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).