Saints no match for Leinster
Leinster downed Northampton 43-16 at Franklin's Gardens on Saturday and are yet to be beaten in this season's European Champions Cup.
Having already taken care of Benetton and Lyon, the province thrashed the English club on their own patch, scoring seven tries to secure a bonus point.
However, it was tight at the break, with the Irish side leading 19-16 thanks to tries by James Lowe, Rhys Ruddock and Andrew Porter.
Northampton's Ahsee Tuala touched down, with Dan Biggar's boot providing all of Saints' other points.
They failed to add to their tally in the second period as Cian Healy, Ross Byrne, Luke McGrath and Ed Byrne all went over for the visitors in a one-sided affair.
Leinster have won three from three, while Northampton, who had won both their games prior to the reverse, will hope to atone for the loss when they travel to the Aviva Stadium in seven days for the rematch.
Leinster head coach Leo Cullen refused to get carried away and insists it is all part of the building process at the club.
"We're just trying to build cohesion with the guys coming back from the World Cup and that's taking a bit of time," he said. "This was a positive step but we'll get better each week and continue to improve."
Neil Foster is an experienced journalist who specialises in cricket and rugby union. Neil also has a solid knowledge of tennis, golf and football.