| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 14-Feb-2020 |  Gus Bell | New South Wales | Australia | 04-Oct-2000 | 19(132) |
| 01-Feb-2020 | Mark Nawaqanitawase | New South Wales | Australia | 11-Sep-2000 | 19(142) |
| 31-Jan-2020 | Jordan Petaia | Queensland Reds | Australia | 14-Mar-2000 | 19(322) |
| 31-Jan-2020 | Noah Lolesio | Brumbies | Australia | 18-Dec-1999 | 20(44) |
| 14-Feb-2020 | Cullen Grace | Crusaders | New Zealand | 20-Dec-1999 | 20(56) |
| 31-Jan-2020 | Harry Wilson | Queensland Reds | Australia | 22-Nov-1999 | 20(70) |
| 01-Feb-2020 | Leicester Faingaanuku | Crusaders | New Zealand | 11-Oct-1999 | 20(113) |
| 01-Feb-2020 | Will Harrison | New South Wales | Australia | 30-Jul-1999 | 20(186) |
| 22-Feb-2020 | Emoni Narawa | Blues | New Zealand | 13-Jul-1999 | 20(224) |
| 13-Mar-2020 | Devan Flanders | Hurricanes | New Zealand | 20-Jul-1999 | 20(237) |
| 01-Feb-2020 | Billy Proctor | Hurricanes | New Zealand | 14-May-1999 | 20(263) |
| 31-Jan-2020 | Quinn Tupaea | Chiefs | New Zealand | 10-May-1999 | 20(266) |
| 06-Mar-2020 | Dallas McLeod | Crusaders | New Zealand | 30-Apr-1999 | 20(311) |
| 22-Feb-2020 | Santiago Chocobares | Jaguares | Argentina | 31-Mar-1999 | 20(328) |
| 31-Jan-2020 | Isaac Lucas | Queensland Reds | Australia | 11-Feb-1999 | 20(354) |
| 15-Feb-2020 | Boeta Chamberlain | Sharks | South Africa | 22-Feb-1999 | 20(358) |
| 31-Jan-2020 | Kaleb Trask | Chiefs | New Zealand | 27-Jan-1999 | 21(4) |
| 22-Feb-2020 | Sanele Nohamba | Sharks | South Africa | 19-Jan-1999 | 21(34) |
| 01-Feb-2020 | Siosaia Fifita | Sunwolves | Japan | 20-Dec-1998 | 21(43) |
| 29-Feb-2020 | Dylan Richardson | Sharks | Scotland | 15-Jan-1999 | 21(45) |
| 29-Feb-2020 | Xavier Numia | Hurricanes | New Zealand | 29-Nov-1998 | 21(92) |
| 31-Jan-2020 | Tata McDermott | Queensland Reds | Australia | 18-Sep-1998 | 21(135) |
| 15-Feb-2020 | Len Ikitau | Brumbies | Australia | 01-Oct-1998 | 21(137) |
| 01-Feb-2020 | Vincent Tshituka | Lions | South Africa | 10-Sep-1998 | 21(144) |
| 15-Feb-2020 | Bradley Slater | Chiefs | New Zealand | 23-Sep-1998 | 21(145) |
| 31-Jan-2020 | Robert Valetini | Brumbies | Australia | 03-Sep-1998 | 21(150) |
| 07-Mar-2020 | Muller Uys | Bulls | South Africa | 02-Sep-1998 | 21(187) |
| 07-Mar-2020 | Ngane Punivai | Highlanders | New Zealand | 30-Aug-1998 | 21(190) |
| 31-Jan-2020 | Hoskins Sotutu | Blues | New Zealand | 12-Jul-1998 | 21(203) |
| 15-Feb-2020 | Lucio Sordoni | Jaguares | Argentina | 23-Jul-1998 | 21(207) |
| 01-Feb-2020 | Oli Jager | Crusaders | Ireland | 05-Jul-1998 | 21(211) |
| 29-Feb-2020 | Harrison Hockings | Queensland Reds | Australia | 29-Jul-1998 | 21(215) |
| 07-Mar-2020 | Ruan Nortje | Bulls | South Africa | 25-Jul-1998 | 21(226) |
| 01-Feb-2020 | Mayco Vivas | Jaguares | Argentina | 02-Jun-1998 | 21(244) |
| 22-Feb-2020 | Harry Plummer | Blues | New Zealand | 19-Jun-1998 | 21(248) |
| 01-Feb-2020 | Damian Willemse | Western Stormers | South Africa | 07-May-1998 | 21(270) |
| 15-Feb-2020 | Manuel Rass | Lions | South Africa | 19-Apr-1998 | 21(302) |
| 01-Feb-2020 | Santiago Carreras | Jaguares | Argentina | 30-Mar-1998 | 21(308) |
| 06-Mar-2020 | James Ramm | New South Wales | Australia | 30-Apr-1998 | 21(311) |
| 15-Feb-2020 | Okoumene Paisami | Queensland Reds | Australia | 10-Apr-1998 | 21(311) |
| 14-Mar-2020 | Ruan Vermaak | Lions | South Africa | 01-May-1998 | 21(318) |
| 01-Feb-2020 | Salmaan Moerat | Western Stormers | South Africa | 06-Mar-1998 | 21(332) |
| 01-Feb-2020 | Tyrone Green | Lions | South Africa | 05-Mar-1998 | 21(333) |
| 31-Jan-2020 | Angus Blyth | Queensland Reds | Australia | 04-Mar-1998 | 21(333) |
| 01-Feb-2020 | Thomas Christie | Crusaders | New Zealand | 04-Mar-1998 | 21(334) |
| 06-Mar-2020 | Ryan Lonergan | Brumbies | Australia | 06-Apr-1998 | 21(335) |
| 08-Feb-2020 | Hamish Stewart | Queensland Reds | Australia | 03-Mar-1998 | 21(342) |
| 01-Feb-2020 | Will Jordan | Crusaders | New Zealand | 24-Feb-1998 | 21(342) |
| 07-Mar-2020 | Wandisile Simelane | Lions | South Africa | 21-Mar-1998 | 21(352) |
| 31-Jan-2020 | Aphelele Fassi | Sharks | South Africa | 23-Jan-1998 | 22(8) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).