O'Brien looks rather dazed hobbling off with blood coming from his nose

Samu Manoa with a huge carry to down O'Brien and Cronin. Saints now attacking from deep after Dickson kicked ahead and Madigan got the opportuntiy to clear. Saints penalty for Leinster not rolling away. Myler going to the corner instead of the three. Surely not time to be turning down a shot at 3 already

Sublime start by Leinster

30 minutes gone here and Saints are on the attack just outside the Leinster 22. Burrell puts in a needless kick and gifts possession back to Leinster. Reddan clears downfield and Northampton will run it back

Absolute rubbish

Leinster is hammering the Saints

Toner tries to regather the high ball but knocks on. Scrum Saints on the Leinster 10m

Bonus point try by half time and it should be game over.

Northampton just not at the races thus far but take nothing away from Leinster's performance. Hugely efficient with a touch of sublime in attack

Outstanding