| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 16-Mar-2013 |  Andrea Lo Cicero | Italy | Italy | 07-May-1976 | 36(313) |
| 16-Mar-2013 |  Brian O'Driscoll | Ireland | Ireland | 21-Jan-1979 | 34(55) |
| 24-Feb-2013 | Donncha O'Callaghan | Ireland | Ireland | 24-Mar-1979 | 33(338) |
| 24-Feb-2013 |  Simon Taylor | Scotland | Scotland | 17-Aug-1979 | 33(192) |
| 16-Mar-2013 | Mike Ross | Ireland | Ireland | 21-Dec-1979 | 33(86) |
| 10-Feb-2013 | Gordon D'Arcy | Ireland | Ireland | 10-Feb-1980 | 33(1) |
| 16-Mar-2013 |  Nicolas Mas | France | France | 25-May-1980 | 32(295) |
| 16-Mar-2013 | Euan Murray | Scotland | Scotland | 07-Aug-1980 | 32(221) |
| 23-Feb-2013 | Kristopher Burton | Italy | Italy | 04-Aug-1980 | 32(203) |
| 02-Feb-2013 | Dougie Hall | Scotland | Scotland | 24-Sep-1980 | 32(131) |
| 03-Feb-2013 | Pascal Pape | France | France | 05-Oct-1980 | 32(121) |
| 16-Mar-2013 |  Gethin Jenkins | Wales | Wales | 17-Nov-1980 | 32(119) |
| 24-Feb-2013 | Tom Court | Ireland | Ireland | 06-Nov-1980 | 32(110) |
| 16-Mar-2013 | Sean Lamont | Scotland | Scotland | 15-Jan-1981 | 32(60) |
| 02-Feb-2013 | Matthew Rees | Wales | Wales | 09-Dec-1980 | 32(55) |
| 16-Mar-2013 | Adam Jones | Wales | Wales | 08-Mar-1981 | 32(8) |
| 09-Mar-2013 | Ryan Jones | Wales | Wales | 13-Mar-1981 | 31(361) |
| 16-Mar-2013 | Andrea Masi | Italy | Italy | 30-Mar-1981 | 31(352) |
| 16-Mar-2013 | Vincent Clerc | France | France | 07-May-1981 | 31(313) |
| 16-Mar-2013 | Quintin Geldenhuys | Italy | Italy | 07-Jun-1981 | 31(283) |
| 16-Mar-2013 | Luciano Orquera | Italy | Italy | 12-Oct-1981 | 31(155) |
| 10-Mar-2013 | Martin Castrogiovanni | Italy | Italy | 21-Oct-1981 | 31(141) |
| 16-Mar-2013 | Thierry Dussautoir | France | France | 18-Nov-1981 | 31(118) |
| 16-Mar-2013 | Mike McCarthy | Ireland | Ireland | 27-Nov-1981 | 31(109) |
| 09-Feb-2013 | Yannick Forestier | France | France | 02-Jan-1982 | 31(38) |
| 09-Mar-2013 | Paul James | Wales | Wales | 13-May-1982 | 30(301) |
| 16-Mar-2013 | Kelly Brown | Scotland | Scotland | 08-Jun-1982 | 30(282) |
| 16-Mar-2013 | Rory Best | Ireland | Ireland | 15-Aug-1982 | 30(214) |
| 16-Mar-2013 | Mike Phillips | Wales | Wales | 29-Aug-1982 | 30(200) |
| 16-Mar-2013 | Frederic Michalak | France | France | 16-Oct-1982 | 30(152) |
| 23-Feb-2013 | Antonio Pavanello | Italy | Italy | 13-Oct-1982 | 30(134) |
| 16-Mar-2013 | Gonzalo Canale | Italy | Italy | 11-Nov-1982 | 30(126) |
| 16-Mar-2013 | James Hamilton | Scotland | Scotland | 17-Nov-1982 | 30(120) |
| 16-Mar-2013 | Lorenzo Cittadini | Italy | Italy | 17-Dec-1982 | 30(90) |
| 09-Feb-2013 | Jocelino Suta | France | France | 18-Nov-1982 | 30(84) |
| 24-Feb-2013 | Geoff Cross | Scotland | Scotland | 11-Dec-1982 | 30(76) |
| 16-Mar-2013 | Alasdair Strokosch | Scotland | Scotland | 21-Feb-1983 | 30(24) |
| 09-Feb-2013 | Dimitri Szarzewski | France | France | 26-Jan-1983 | 30(15) |
| 16-Mar-2013 | Robert Kearney | Ireland | Ireland | 26-Mar-1983 | 29(356) |
| 23-Feb-2013 | Manoa Vosawai | Italy | Italy | 12-Aug-1983 | 29(196) |
| 16-Mar-2013 | Sergio Parisse | Italy | Italy | 12-Sep-1983 | 29(186) |
| 16-Mar-2013 |  Geoffrey Parling | England | England | 28-Oct-1983 | 29(140) |
| 16-Mar-2013 | Donnacha Ryan | Ireland | Ireland | 11-Dec-1983 | 29(96) |
| 16-Mar-2013 | Richard Hibbard | Wales | Wales | 13-Dec-1983 | 29(94) |
| 16-Mar-2013 | James Heaslip | Ireland | Ireland | 15-Dec-1983 | 29(92) |
| 09-Mar-2013 | Yannick Nyanga | France | France | 19-Dec-1983 | 29(81) |
| 09-Mar-2013 | Florian Fritz | France | France | 17-Jan-1984 | 29(52) |
| 16-Mar-2013 | Alessandro Zanni | Italy | Italy | 31-Jan-1984 | 29(45) |
| 16-Mar-2013 | Gonzalo Garcia | Italy | Italy | 18-Feb-1984 | 29(27) |
| 09-Mar-2013 | Christophe Samson | France | France | 01-Mar-1984 | 29(8) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).