England will have three clubs in the Heineken Cup quarter-finals for the first time since 2009.
Two-time defending champions Leinster crashed out of the Heineken Cup after Munster beat Racing Metro, while Saracens and Leicester progressed.
Leicester Tigers clinched the final Heineken Cup quarter-final spot after defeating Toulouse 9-5 at a snow-swept Welford Road.
Andrea Pratichetti crossed at the death as Treviso fought back to snatch a shock 17-14 Heineken Cup victory over the Ospreys.
Leinster have missed out on a place in the quarter-finals following Munster's 29-6 win over 14-man Racing Metro.
Chris Ashton ran in a brace of tries as Saracens beat Edinburgh 40-7 to secure a home quarter-final in the Heineken Cup.
Cardiff Blues director of rugby Phil Davies praised his team after they broke their Heineken Cup duck with a 26-14 win over Sale.
Leinster coach Joe Schmidt felt his side deserved their 29-20 Heineken Cup win over Exeter Chiefs, keeping alive their quarter-finals hopes.
Jim Mallinder accepted Northampton did not deserve to progress in the Heineken Cup after their campaign was ended with defeat at Glasgow.
Unbeaten Clermont Auvergne booked a home draw in the Heineken Cup quarter-finals with a bonus-point 29-0 win over Scarlets at Parc y Scarlets.
Leinster kept alive their hopes of retaining the Heineken Cup with victory over Exeter on Saturday, but Northampton's dreams are over.
Two second half tries kept Leinster's Heineken Cup hopes alive, but they were forced to battle hard at Exeter, running out 29-20 winners.
Ulster improved their chances of a home tie in the quarter finals of the Heineken Cup with a 9-8 victory over Castres at Stade Pierre-Antoine.
Lloyd Williams was the star of the show as Cardiff Blues rewarded the dedication of their fans by beating Sale 26-14 in the Heineken Cup.
Glasgow put an end to Northampton's hopes of a Heineken Cup quarter-final berth as Peter Horne's last-gasp try secured a 27-20 home win.
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The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
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