The draw, conducted by ERC chairman Jean-Pierre Lux, will determine the composition of the six pools of four.
Tigers, finalists in 2007, are unseeded.
The six top seeds from the six nations will be kept apart at the head of the six Pools.
The confirmed top seeds are: London Wasps, Stade Français Paris, Leinster, Benetton Treviso, Glasgow Warriors and the Ospreys.
No two teams from the same country will be drawn in the same pool, except for the seventh English club, Harlequins, who could face any of their six domestic rivals.
The Heineken Cup 2007/08 is due to begin on the weekend of November 9-11, 2007.
Draw format
Step 1 - Six top seeded teams drawn into six separate pools
Step 2 - Five English teams drawn into five separate pools
Step 3 - Five French teams drawn into five separate pools
Step 4 - Three Welsh teams drawn into three separate pools
Step 5 - Two Irish teams drawn into two separate pools
Step 6 - The remaining Italian and Scottish teams drawn into two separate pools
Step 7 - Seventh English team drawn into final pool spot
Qualifiers
England - London Wasps (seeded), Leicester Tigers, Gloucester Rugby, Bristol Rugby, Saracens, London Irish, NEC Harlequins
France - Stade Francais Paris (seeded), ASM Clermont Auvergne, Toulouse, Biarritz Olympique Pays Basque, Perpignan, Bourgoin
Ireland - Leinster (seeded), Ulster Rugby, Munster
Italy - Benetton Treviso (seeded), Viadana
Scotland - Glasgow Warriors (seeded), Edinburgh
Wales - Ospreys (seeded), Cardiff Blues, Llanelli Scarlets, Newport Gwent Dragons
The Heineken Cup pool-stage draw will be added to the fixture list this week and it is an exciting time of year for supporters as the 2007/08 campaign begins to take shape.
If you have not yet renewed your season ticket, then do not delay. The deadline for renewals has been extended to Friday, June 22. New season ticket applications are also being collected by the Tigers ticket office and they will be dealt with in date order once the renewal deadline has passed.
Click here to download a season ticket application form.
