Northampton Saints head to France looking for their first victory in the 2011/12 competition.
Last season's beaten finalists have been on the wrong end of a last ditch win by Munster in Ireland and suffered at the hands of a rampant Scarlets side at Franklin's Gardens.
The Premiership side, who were crowned Heineken Cup champions in 2000, face French side, Castres, in the first of their Pool 1 back-to-back clashes at the Stade Pierre Antoine on Saturday.
The French side will still have ambitions of their own in the Pool but will be more than aware they have to record emphatic wins if they are to keep those ambitions alive in this season's Heineken Cup.
Castres were robbed of a home victory over Munster by a last ditch drop goal by Ronan O'Gara and suffered a defeat an away defeat to the Scarlets in the Pool 1 opener