Mike Ford hailed his side for becoming the first team in the European Cup to lose its first two group games and qualify.
Racing Metro Paris booked a Champions Cup quarter-final with a resounding 32-8 win over Northampton Saints.
Toulouse crashed out of the European Champions Cup after they suffered a stunning 27-26 defeat at Montpellier.
Aviva Premiership quartet Wasps, Bath, Northampton and Saracens all face daunting away trips in the Champions Cup.
Munster ended their European Champions Cup campaign on a high with a 65-10 hammering of Sale.
Reigning kings of Europe Toulon ended the groups stages of the Champions Cup on a high as they beat Scarelts 26-3.
Harlequins fought for a Champions Cup quarter-final place with a 47-19 win at Castres, but their efforts were in vein.
Toulon coach Bernard Laporte was delighted to see his side seal a home draw in the Champions Cup quarter-finals.
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