| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 10-Feb-2019 |  Gregory Lamboley | France | France | 12-Jan-1982 | 37(29) |
| 16-Mar-2019 |  Rory Best | Ireland | Ireland | 15-Aug-1982 | 36(213) |
| 16-Mar-2019 |  Jayden Hayward | Italy | Italy | 30-Nov-1982 | 36(106) |
| 16-Mar-2019 | Tito Tebaldi | Italy | Italy | 24-Mar-1983 | 35(358) |
| 16-Mar-2019 | Robert Kearney | Ireland | Ireland | 26-Mar-1983 | 35(356) |
| 16-Mar-2019 | Sergio Parisse | Italy | Italy | 12-Sep-1983 | 35(186) |
| 16-Mar-2019 | Leonardo Ghiraldini | Italy | Italy | 26-Dec-1984 | 34(80) |
| 16-Mar-2019 | Jonathan Sexton | Ireland | Ireland | 11-Jul-1985 | 33(248) |
| 16-Mar-2019 |  Alan Wyn Jones | Wales | Wales | 19-Sep-1985 | 33(178) |
| 23-Feb-2019 |  Greig Laidlaw | Scotland | Scotland | 12-Oct-1985 | 33(134) |
| 16-Mar-2019 | Louis Picamoles | France | France | 05-Feb-1986 | 33(39) |
| 16-Mar-2019 | Willem Petrus Nel | Scotland | Scotland | 30-Apr-1986 | 32(320) |
| 24-Feb-2019 | Sean Cronin | Ireland | Ireland | 06-May-1986 | 32(294) |
| 16-Mar-2019 | Guilhem Guirado | France | France | 17-Jun-1986 | 32(272) |
| 09-Mar-2019 | Dean Budd | Italy | Italy | 31-Jul-1986 | 32(221) |
| 02-Feb-2019 | Devin Toner | Ireland | Ireland | 29-Jun-1986 | 32(218) |
| 09-Mar-2019 | Joshua Strauss | Scotland | Scotland | 23-Oct-1986 | 32(137) |
| 16-Mar-2019 | Maxime Medard | France | France | 16-Nov-1986 | 32(120) |
| 16-Mar-2019 | Ken Owens | Wales | Wales | 03-Jan-1987 | 32(72) |
| 16-Mar-2019 | Yohan Huget | France | France | 26-Jan-1987 | 32(49) |
| 09-Mar-2019 |  Ben Te'o | England | England | 27-Jan-1987 | 32(41) |
| 16-Mar-2019 | Sean O'Brien | Ireland | Ireland | 14-Feb-1987 | 32(30) |
| 10-Feb-2019 | Chris Ashton | England | England | 29-Mar-1987 | 31(318) |
| 16-Mar-2019 | Keith Earls | Ireland | Ireland | 02-Oct-1987 | 31(165) |
| 16-Mar-2019 | Hadleigh Parkes | Wales | Wales | 05-Oct-1987 | 31(162) |
| 16-Mar-2019 | Cian Healy | Ireland | Ireland | 07-Oct-1987 | 31(160) |
| 24-Feb-2019 | Jim Tuivaiti | Italy | New Zealand | 01-Feb-1988 | 31(23) |
| 01-Feb-2019 | Wesley Fofana | France | France | 20-Jan-1988 | 31(12) |
| 16-Mar-2019 | Jon Davies | Wales | Wales | 05-Apr-1988 | 30(345) |
| 09-Mar-2019 | Tommy Seymour | Scotland | Scotland | 01-Jul-1988 | 30(251) |
| 16-Mar-2019 | Sean Maitland | Scotland | Scotland | 14-Sep-1988 | 30(183) |
| 16-Mar-2019 | Mathieu Bastareaud | France | France | 17-Sep-1988 | 30(180) |
| 10-Feb-2019 | Morgan Parra | France | France | 15-Nov-1988 | 30(87) |
| 24-Feb-2019 | Dave Kilcoyne | Ireland | Ireland | 14-Dec-1988 | 30(72) |
| 23-Feb-2019 | Courtney Lawes | England | England | 23-Feb-1989 | 29(365) |
| 10-Mar-2019 | Wenceslas Lauret | France | France | 28-Mar-1989 | 29(347) |
| 16-Mar-2019 | Conor Murray | Ireland | Ireland | 20-Apr-1989 | 29(330) |
| 16-Mar-2019 | Byron McGuigan | Scotland | Scotland | 20-Apr-1989 | 29(330) |
| 10-Feb-2019 | Camille Lopez | France | France | 03-Apr-1989 | 29(313) |
| 09-Feb-2019 | Ryan Wilson | Scotland | Scotland | 18-May-1989 | 29(267) |
| 16-Mar-2019 | Ben Moon | England | England | 14-Jul-1989 | 29(245) |
| 16-Mar-2019 | Andrea Lovotti | Italy | Italy | 28-Jul-1989 | 29(231) |
| 16-Mar-2019 | Justin Tipuric | Wales | Wales | 06-Aug-1989 | 29(222) |
| 16-Mar-2019 | Ben Youngs | England | England | 05-Sep-1989 | 29(192) |
| 16-Mar-2019 | Geoffrery Doumayrou | France | France | 16-Sep-1989 | 29(181) |
| 16-Mar-2019 | Peter O'Mahony | Ireland | Ireland | 17-Sep-1989 | 29(180) |
| 16-Mar-2019 | Mark Wilson | England | England | 06-Oct-1989 | 29(161) |
| 09-Mar-2019 | Peter Horne | Scotland | Scotland | 05-Oct-1989 | 29(155) |
| 09-Feb-2019 | Daniel Biggar | Wales | Wales | 16-Oct-1989 | 29(116) |
| 16-Mar-2019 | George Kruis | England | England | 22-Feb-1990 | 29(22) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).