But that line-out is stolen by Saints! Still no score after almost 35 minutes of play.

Crooked throw from Dylan Hartley and now it's a Castres line-out just 10 metres out.

Fascinating passage of play with Northampton first of all putting together some nice phases. Then they're turned over and Castres full-back Brice Dulin wastes little time in bringing the game the other direction, breaking some tackles in midfield and then kicking to bring the play well down into the Northampton 22.

Northampton build a decent attacking and work their way into the 22 before newly recruited full-back Autagavaia knocks on and brings the attack to an end.

25 minutes in and still no sign of the first score. Castres probably enjoying more possession but the defences of both sides proving too strong.

Free kick awarded to Northampton at scrum-time. Bit of a let-off.

High ball is causing trouble for Northampton. Another bomb from Kirkpatrick is dropped by Faatoina Autagavaia and Castres have a scrum under the Northampton posts.

Now a scare for the home as Remy Grosso puts serious pressure on Ken Pisi under the high ball but just knocks on. Saints win a penalty from the resultant scrum deep in their own half, their scrum has been dominant thus far.

Number of handling errors in the opening 15 minutes, very little in the way of attacking prowess from either side so far.

Now Castres have the field position. Wonderful kick from Daniel Kirkpatrick pins the Saints back and Faatoina Autagavaia has a poor clearance. Castres line-out on the opposition 22.