Sebastien Tillous-Borde touched down a consolation for Castres as Northampton, already through as group winners, guaranteed last-eight home advantage.

BBC: Castres 12-23 Northampton

France looked in trouble in the fifth minute when Sebastien Tillous-Borde fumbled a loose ball on his own tryline following a Max Evans kick and chase.

BBC: France 22-13 Scotland

Castres' commitment was rewarded in the dying moments when Tillous-Borde went over in the corner, however the score was purely academic as Northampton closed out the game to ensure they became the first English team to record a 100% pool record since Bath in 2002.

BBC: Castres 12-23 Northampton