The Ospreys have been drawn against English, Irish and French opposition in Pool 3 of the 2010/11 Heineken Cup.
Magners League rivals and double Heineken Cup champions Munster were first out of the hat, and they were joined by 2008 semi-finalists London Irish and this year's Amlin Cup runners-up Toulon.
The full draw is as follows:
Pool 1:
Cardiff Blues
Northampton Saints
Edinburgh
Castres Olympique
Pool 2:
Leinster
Clermont Auvergne
Saracens
Racing Metro
Pool 3:
Munster
Ospreys
London Irish
Toulon
Pool 4:
Biarritz Olympique
Bath Rugby
Ulster
Aironi Rugby
Pool 5:
Leicester Tigers
Scarlets
USAP Perpignan
Benetton Treviso
Pool 6:
Toulouse
London Wasps
Glasgow
Newport Gwent Dragons
HEINEKEN CUP 2010/11 FIXTURES
ROUND 1 – 8/9/10 October, 2010
ROUND 2 – 15/16/17 October, 2010
ROUND 3 – 10/11/12 December, 2010
ROUND 4 – 17/18/19 December, 2010
ROUND 5 – 14/15/16 January, 2011
ROUND 6 – 21/22/23 January, 2011
QUARTER-FINALS – 8/9/10 April, 2011
SEMI-FINALS – 30 April/1 May, 2011
16th HEINEKEN CUP FINAL – Millennium Stadium, Cardiff – 21/22 May, 2011