The Heineken Cup quarter-finals will see a repeat of last year's European final in one of two all-French pairings.
Biarritz Olympique will host reigning Champions Toulouse, whilst Toulon in their first year in the Heineken Cup will travel to Perpignan.
Northampton Saints will host Ulster and Leicester Tigers will travel to Ireland to line up against Leinster.
The quarter-final matches, to be played the weekend of 8 / 9 / 10 April, 2011, will be:
(1) Northampton Saints v Ulster Rugby (8)
(2) Leinster v Leicester Tigers (7)
(3) Perpignan v Toulon (6)
(4) Biarritz Olympique v Toulouse(5)
Heineken Cup quarter-final qualifiers and their rankings:
1 Northampton Saints
2 Leinster
3 Perpignan
4 Biarritz Olympique
5 Toulouse
6 Toulon
7 Leicester Tigers (Best Pool runner-up)
8 Ulster Rugby (Second best Pool runner-up).
Heineken Cup semi-final draw:
The draw for the Heineken Cup 2010 / 2011 semi-finals was made in High Wycombe this evening.
HEINEKEN CUP SEMI-FINALS 2010 / 2011
(To be played 30 April / 1 May)
The winner of the first named quarter-final in each semi-final pairing will have home country advantage.
Semi-final 1: Leinster or Leicester Tigers v Biarritz Olympique or Toulouse
Semi-final 2: Northampton Saints or Ulster Rugby v Perpignan or Toulon
The three Heineken Cup Pool runners-up who have qualified for the Amlin Challenge Cup 2010 / 2011 quarter-finals are:
1 London Wasps (Third best Pool runner-up)
2 ASM Clermont Auvergne (Fourth best Pool runner-up)
3 Munster (Fifth best Pool runner-up)