Saints dominate the scrum and win a penalty. Myler will try to put Saints in front early on.

Great charge down by Calum Clark as he blocks down a kick from Webb. Northampton get their hands on the ball but Clark knocks the ball on scrum to Ospreys.

Steven Myler gets this game underway here, Kicking deep into the Ospreys half.

COME ON YOU SAINTS!!!!! <3

Both sides make their way onto the pitch. Huge game we have here is minutes from kick off

one Late change for the Ospreys.Ashley Beck is out with a calf injury so Jonathan Spratt will take his place at first centre. With Ben John replacing him on the bench.

Ospreys make four changes from the side that defeated Scarlets 17-12 at The Liberty Stadium last week. 2 changes in the pack Bevington coming into the front row in place of Duncan Jones, While Welsh international and British and Irish Lion Justic Tipuric starts at openside flanker with Tyler Ardron dropping to the bench. Two changes in the back line with Tom Issacs and Richard Fussel coming into the team in place of Ben John and Sam Davies. As for the Saints the make 2 changes to the team that defeated Harlequins in Franklin Gardens last Friday night with Tom Wood coming into the side at openside flanker in place of Phil Dowson. While at scrum half Samoa International Kahn Fotuali'i starts instead of Lee Dickson.

Welcome to Ultimate Rugby's live coverage of this round 5 Heineken Cup match where Northampton Saints travel to the Liberty Stadium to take on The Ospreys. A huge game for the Saint here today as they will need maximum points here today if they are to stand any chance of qualifying for the quarter finals. The Saints turned around a hammering at Franklin Gardens by Leinster by defeating the 3 time European champions in Dublin to put themselves back in contention in this competition, but a win and a 4 try bonus point will be needed to have any hope of progressing to the next stage. As for Ospreys in their matches so far in this pool they have never lacked effort but have lacked the cutting edge to put away Leinster, Northampton and Castres losing the first 3 matches by no more than 11 points, but will be happy they picked up a win at home to French champions Castres in round 4 of the competition. Both sides go into this game on some good form with Ospreys winning their last four games and picking up win against Scarletts last Friday. As for the Saints they also go into this game on the back of four straight wins, which included a win against Harlequins last Friday further cementing their second place spot in the Aviva Premiership as they look to book their place for the Premiership final on May 31st. Northampton won the reserve fixture 27-16 at Franklin Gardens and will be hoping for a similar result today although they only got three tries that day they will be looking for a win and four tries if they want to progress to the final 8. Kick off is half an hour away so stay with us for further updates and analysis on tonights match.