ALL THE POOL PERMUTATIONS WITH ONE ROUND TO GO

Do-or-die for WASPS. They must take a bonus-point win. Then if HARLEQUINS beat LA ROCHELLE and ULSTER do not take a losing bonus point it will come down to head-to-head record between them and Wasps, with both on 17 points. Any win for Ulster and La Rochelle sends them through. Quins are out.

REMAININGMATCHES Sunday(3.15pm): WaspsvUlster; LaRochellevHarlequins

A bonus point win for SARACENS is very likely to send them through as a best runner-up on 18 points. Defeat sends them out. An OSPREYS win at CLERMONT would also send the champions out but the Welsh through. NORTHAMPTON are long gone despite their impressive win over Clermont on Saturday.

REMAININGMATCHES Saturday(3.15pm): SaracensvNorthampton; ClermontvOspreys.

LEINSTER have already secured a home quarterfinal having won all five of their matches. EXETER will probably make it with a win at GLASGOW on Saturday, but will want four tries and a bonus point to make absolutely sure. MONTPELLIER are in the same boat as Saracens, needing a big win and some help from elsewhere.

REMAININGMATCHES Saturday(1pm): Montpellierv Le inst er; GlasgowvExeter.

Victory for MUNSTER puts them through to the last eight, but they may not have a home quarter-final, depending on other results. A RACING 92 win would mean they set the bar high for a best second place, which would be bad news for the English clubs in other pools. LEICESTER are long gone, having won just once, and CASTRES are struggling.

REMAININGMATCHES Sunday(1pm): MunstervCastres; LeicestervRacing92.

Very tight, with TOULON, SCARLETS and BATH all still in contention. Bath, after their home defeat by Scarlets, have the slimmest chance, needing a five-point win and several results to turn in their favour. The winners of Scarlets v Toulon on Saturday go through as table-toppers, but the losers could go out. TREVISO are already out.

REMAININGMATCHES Saturday(5.30pm): ScarletsvToulon; BenettonvBath.