| # | Group 1 | MP | W | D | L | TP | Pts | Form |
|---|
| 1. | Leinster | 3 | 3 | 0 | 0 | 125:54 | 15 | |
| 2. | Northampton Saints | 3 | 2 | 0 | 1 | 74:77 | 9 | |
| 3. | Lyon | 3 | 1 | 0 | 2 | 58:49 | 6 | |
| 4. | Benetton | 3 | 1 | 0 | 2 | 57:75 | 6 | |
| # | Group 2 | MP | W | D | L | TP | Pts | Form |
|---|
| 1. | Exeter Chiefs | 3 | 3 | 0 | 0 | 102:42 | 15 | |
| 2. | Glasgow Warriors | 3 | 1 | 1 | 1 | 51:50 | 8 | |
| 3. | Stade Rochelais | 3 | 1 | 0 | 2 | 66:81 | 6 | |
| 4. | Sale Sharks | 3 | 1 | 0 | 2 | 52:82 | 5 | |
| # | Group 3 | MP | W | D | L | TP | Pts | Form |
|---|
| 1. | Clermont | 3 | 3 | 0 | 0 | 134:60 | 14 | |
| 2. | Ulster | 3 | 3 | 0 | 0 | 65:52 | 12 | |
| 3. | Harlequins | 3 | 1 | 0 | 2 | 44:69 | 5 | |
| 4. | Bath | 3 | 0 | 0 | 3 | 52:76 | 2 | |
| # | Group 4 | MP | W | D | L | TP | Pts | Form |
|---|
| 1. | Racing 92 | 3 | 3 | 0 | 0 | 109:59 | 15 | |
| 2. | Saracens | 3 | 3 | 0 | 0 | 86:33 | 13 | |
| 3. | Munster | 3 | 2 | 1 | 0 | 64:30 | 11 | |
| 4. | Ospreys | 3 | 0 | 0 | 3 | 47:94 | 1 | |
| # | Group 5 | MP | W | D | L | TP | Pts | Form |
|---|
| 1. | Stade Toulousain | 3 | 3 | 0 | 0 | 90:40 | 14 | |
| 2. | Gloucester | 3 | 2 | 0 | 1 | 75:48 | 11 | |
| 3. | Montpellier | 3 | 2 | 0 | 1 | 83:82 | 9 | |
| 4. | Connacht | 3 | 2 | 0 | 1 | 57:65 | 8 | |
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