| 12 Jan 24 |
r03        | Northampton SaintsNorthampton S | 61 - 14 | Aviron BayonnaisAviron Bayonn |
| 13 Jan 24 |
r03        | Exeter ChiefsExeter Chiefs | 19 - 17 | GlasgowGlasgow |
| 13 Jan 24 |
r03        | Bristol RugbyBristol Rugby | 17 - 31 | Bulls Super RugbyBulls Super R |
| 13 Jan 24 |
r03        | RC ToulonnaisRC Toulonnais | 18 - 29 | MunsterMunster |
| 13 Jan 24 |
r03        | LeinsterLeinster | 43 - 7 | Stade Français ParisStade Françai |
| 13 Jan 24 |
r03        | Cardiff RugbyCardiff Rugby | 15 - 54 | HarlequinsHarlequins |
| 13 Jan 24 |
r03        | UlsterUlster | 24 - 48 | Stade ToulousainStade Toulous |
| 14 Jan 24 |
r03        | Bath RugbyBath Rugby | 29 - 25 | Racing Métro 92Racing Métro |
| 14 Jan 24 |
r03        | Stade RochelaisStade Rochela | 45 - 12 | Leicester TigersLeicester Tig |
| 14 Jan 24 |
r03        | Union Bordeaux BèglesUnion Bordeau | 55 - 15 | SaracensSaracens |