| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 07-Feb-2021 | Louis Rees-Zammitt | Wales | 02-Feb-2001 | 20(5) |
| 13-Feb-2021 | Aaron Wainwright | Wales | 25-Sep-1997 | 23(141) |
| 07-Feb-2021 | Johnny Williams | Wales | 18-Oct-1996 | 24(112) |
| 13-Feb-2021 | Owen Watkin | Wales | 12-Oct-1996 | 24(124) |
| 07-Feb-2021 | Adam Beard | Wales | 07-Jan-1996 | 25(32) |
| 27-Feb-2021 | Kieran Hardy | Wales | 30-Nov-1995 | 25(90) |
| 27-Feb-2021 | Josh Adams | Wales | 21-Apr-1995 | 25(313) |
| 13-Feb-2021 | Nick Tompkins | Wales | 16-Feb-1995 | 25(363) |
| 07-Feb-2021 | Tomos Williams | Wales | 01-Jan-1995 | 26(38) |
| 07-Feb-2021 | Hallam Amos | Wales | 24-Sep-1994 | 26(137) |
| 07-Feb-2021 | Tomas Francis | Wales | 27-Apr-1992 | 28(286) |
| 07-Feb-2021 | George North | Wales | 13-Apr-1992 | 28(300) |
| 07-Feb-2021 | Wyn Jones | Wales | 26-Feb-1992 | 28(347) |
| 13-Mar-2021 | Cory Hill | Wales | 10-Feb-1992 | 29(32) |
| 13-Feb-2021 | Liam Williams | Wales | 09-Apr-1991 | 29(311) |
| 27-Feb-2021 | Josh Navidi | Wales | 30-Dec-1990 | 30(60) |
| 07-Feb-2021 | Toby Faletau | Wales | 12-Nov-1990 | 30(88) |
| 13-Feb-2021 | Gareth Davies | Wales | 18-Aug-1990 | 30(180) |
| 07-Feb-2021 | Daniel Biggar | Wales | 16-Oct-1989 | 31(115) |
| 07-Feb-2021 | Justin Tipuric | Wales | 06-Aug-1989 | 31(186) |
| 07-Feb-2021 | Leigh Halfpenny | Wales | 22-Dec-1988 | 32(47) |
| 27-Feb-2021 | Jon Davies | Wales | 05-Apr-1988 | 32(328) |
| 07-Feb-2021 | Dan Lydiatt | Wales | 18-Dec-1987 | 33(52) |
| 07-Feb-2021 | Ken Owens | Wales | 03-Jan-1987 | 34(36) |
| 07-Feb-2021 | Alan Wyn Jones | Wales | 19-Sep-1985 | 35(142) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).