Six of the seven English clubs in the Heineken Cup go into the fifth round of matches still in with a chance of a place in the quarter finals with the exception of Harlequins.
It was a mixed weekend for the English clubs in the Heineken Cup with both Leicester Tigers and London Irish suffering defeats on the road in France.
On Saturday London Irish were beaten 23-6 in Perpignan but remain top of the Pool on 14 points, one more than Perpignan.
On Sunday Leicester Tigers were beaten 22-11 by Toulouse and now trail the French club by five points in the Pool and are in serious danger of not topping Pool 6.
Gloucester made it four wins out of four with a comfortable 51-27 win over French club Bourgoin as they picked up a try bonus point for the third time inthis campaign.
Bristol top Pool 3 after a 20-7 win over Harlequins and are level on points with Cardiff Blues with a trip away to Stade Francais next on the fixture.
Saracens completed a double over Viadana and top Pool 4 with 15 points, two more than Biarittz who Saracens host in their next match which will decide the Pool
Defending Champions London Wasps were narrow 25-24 home winners over Clermont Auvergne and trail Munster in the Pool 5 table by a points. The Irish side have to go to Clermont in the next round of matches whilst Wasps host the Scarlets at Adams Park.
For full details of all the matches click on the link below
Perpignan 23 London Irish 6
Gloucester 51 Bourgoin 27
London Wasps 25 ASM Clermont Auvergne 24
Viadana 26 Saracens 34
Bristol 20 Harlequins 7
Toulouse 22 Leicester Tigers 11