| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 05-Oct-1997 |  Iain Balshaw | Bath | England | 18-Apr-1979 | 18(171) |
| 01-Nov-1997 |  Craig Morgan | Cardiff Blues | Wales | 26-Sep-1978 | 19(36) |
| 12-Oct-1997 |  Lewis Moody | Leicester Tigers | England | 12-Jun-1978 | 19(122) |
| 07-Sep-1997 | Jason White | Caledonia | Scotland | 17-Apr-1978 | 19(143) |
| 20-Sep-1997 | Denis Dallan | Benetton Treviso | Italy | 04-Mar-1978 | 19(200) |
| 07-Sep-1997 |  Stephen Jones | Scarlets | Wales | 08-Dec-1977 | 19(273) |
| 20-Sep-1997 | Dorian Williams | Scarlets | Wales | 10-Nov-1977 | 19(314) |
| 14-Sep-1997 |  Julien Tilloles | Toulouse | France | 29-Oct-1977 | 19(320) |
| 11-Oct-1997 | Justin Thomas | Cardiff Blues | Other | 01-Nov-1977 | 19(344) |
| 20-Sep-1997 | Tom Barlow | Leicester Tigers | England | 28-Sep-1977 | 19(357) |
| 27-Sep-1997 | Leon Lloyd | Leicester Tigers | England | 22-Sep-1977 | 20(5) |
| 11-Oct-1997 | Andy Long | Bath | England | 02-Sep-1977 | 20(39) |
| 07-Sep-1997 | Michael Horak | Leicester Tigers | England | 03-Jun-1977 | 20(96) |
| 05-Oct-1997 |  Joe Worsley | London Wasps | England | 14-Jun-1977 | 20(113) |
| 20-Sep-1997 | David Janin | Bourgoin | France | 09-May-1977 | 20(134) |
| 21-Sep-1997 | Martyn Wood | London Wasps | England | 25-Apr-1977 | 20(149) |
| 07-Sep-1997 | Benjamin Lhande | Pau | France | 29-Mar-1977 | 20(162) |
| 07-Sep-1997 |  Ronan O'Gara | Munster | Ireland | 07-Mar-1977 | 20(184) |
| 07-Sep-1997 | Gareth Wyatt | Pontypridd | Wales | 04-Mar-1977 | 20(187) |
| 07-Sep-1997 | James Craig | Glasgow Warriors | Scotland | 02-Mar-1977 | 20(189) |
| 07-Sep-1997 | Kevin Morgan | Pontypridd | Wales | 23-Feb-1977 | 20(196) |
| 07-Sep-1997 |  Sheldon Coulter | Ulster | Ireland | 01-Feb-1977 | 20(218) |
| 11-Oct-1997 | Sebastien Fauque | Pau | France | 06-Mar-1977 | 20(219) |
| 21-Sep-1997 | Chris Wells | Swansea | Wales | 12-Feb-1977 | 20(221) |
| 07-Sep-1997 | Matt Perry | Bath | England | 27-Jan-1977 | 20(223) |
| 27-Sep-1997 | Chris Horsman | Bath | Wales | 02-Feb-1977 | 20(237) |
| 07-Sep-1997 | Jerome Carrat | Brive | France | 07-Dec-1976 | 20(274) |
| 05-Oct-1997 | James Griffiths | Swansea | Wales | 03-Jan-1977 | 20(275) |
| 06-Sep-1997 | Xavier Garbajosa | Toulouse | France | 05-Dec-1976 | 20(275) |
| 07-Sep-1997 | Anthony Horgan | Munster | Ireland | 15-Nov-1976 | 20(296) |
| 07-Sep-1997 | Manuel Dallan | Benetton Treviso | Italy | 15-Oct-1976 | 20(327) |
| 07-Sep-1997 | Iain Sinclair | Glasgow Warriors | Scotland | 07-Oct-1976 | 20(335) |
| 07-Sep-1997 | Lee Jarvis | Cardiff Blues | Wales | 30-Sep-1976 | 20(342) |
| 07-Sep-1997 | Nicolas Brusque | Pau | France | 07-Aug-1976 | 21(31) |
| 07-Sep-1997 | Chris Anthony | Swansea | Wales | 23-Jul-1976 | 21(46) |
| 07-Sep-1997 | Kevin Utterson | Scottish Borders | Scotland | 17-Jul-1976 | 21(52) |
| 05-Oct-1997 | Gregor Hayter | Caledonia | Scotland | 13-Aug-1976 | 21(53) |
| 14-Sep-1997 | Michael Wood | Bath | England | 15-Jul-1976 | 21(61) |
| 11-Oct-1997 | Sebastien Vignolo | Pau | Other | 09-Jul-1976 | 21(94) |
| 07-Sep-1997 | Dean Thomas | Swansea | Wales | 05-Jun-1976 | 21(94) |
| 13-Sep-1997 | Aled Thomas | Scarlets | Wales | 15-May-1976 | 21(121) |
| 07-Sep-1997 | Iain Fullerton | Scottish Borders | Scotland | 25-Apr-1976 | 21(135) |
| 07-Sep-1997 | Stephen Bell | Ulster | Ireland | 21-Apr-1976 | 21(139) |
| 04-Oct-1997 | Luca Mastrodomencio | Milan | Italy | 06-May-1976 | 21(151) |
| 07-Sep-1997 | Brian O'Meara | Munster | Ireland | 05-Apr-1976 | 21(155) |
| 07-Sep-1997 |  Jamie Williams | Harlequins | * | 16-Mar-1976 | 21(175) |
| 07-Sep-1997 | Leigh Davies | Cardiff Blues | Wales | 20-Feb-1976 | 21(200) |
| 06-Sep-1997 |  Dennis Hickie | Leinster | Ireland | 13-Feb-1976 | 21(206) |
| 01-Nov-1997 | Hywel Jenkins | Scarlets | Wales | 07-Mar-1976 | 21(239) |
| 20-Sep-1997 | Olivier Milloud | Bourgoin | France | 09-Dec-1975 | 21(286) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).