Bayonne continued their fantastic start to the French domestic season with an 18-16 victory over reigning champions ASM Clermont Auvergne on Friday evening to keep them riding high in the Top 14.
The Amlin Challenge Cup side finished 13
th in the French top flight last season but have begun their 2010/11 campaign with five victories from their opening six games and sit four points ahead of Racing Metro Paris at the top of the table.
Bayonnetravel to third-placed Toulouse on Friday, with the reigning Heineken Cup Champions looking to bounce back from defeat at Biarritz Olympique last weekend.
Bayonnewill hope to carry their form into their European campaign which begins with the visit of Harlequins to Stade Jean Dauger on Sunday, October 10.
The Pas Basque side then visit Connacht in Round 2 of the competition before back-to-back fixtures against I Cavalieri Estra as the team led by French international Rémy Martin look to make it out of Pool 1 for the time since 2006.