Tries from Shane Horgan and Stephen Keogh drove Leinster to a 23-6 win over the Cardiff Blues at the RDS, moving the European champions back to the top of the Magners League in the process.

Cardiff place-kicker Ben Blair had an off night with the boot, kicking only two out of five penalty attempts, while Leinster out-half Jonathan Sexton booted 13 points to help his side to a deserved victory.

Coming off the back of a great derby win over the Ospreys last week, the understrength Blues could not cope with a strong Leinster outfit whose stellar back-line provided a constant threat.