Image source, PA

He is 100% for today Owen Farrell with his kicking as Saracens look to be closing out this game.

It has not been open, running rugby this afternoon but the champions are grinding it out and capitalising on Northampton mistakes.

That's Farrell's last action as Charlie Hodgson comes on for him.

Image source, Getty Images

It is full-time at Sixways and tries from Chris Pennell, Bryce Heem and a couple from Alex Grove have given Worcester Warriors a superb bonus-point victory over winless Newcastle Falcons.

At the Madejski Stadium, meanwhile, Rhys Priestland's touchdown has extended Bath's lead over London Irish to 38-14.

Saracens on the front foot inside the Northampton 22 and they have themselves a penalty advantage. They spin it left but nothing really comes of it and Owen Farrell asks for the kicking tee to try and kick his fourth penalty...

For one the of the few times today, there is a line break as Northampton work a set move off the line-out and Jamie Elliott breaks through.

As Saints try to recycle they are penalised on the floor and now Saracens are up to their 22 with the Owen Farrell kick.

Image source, Getty Images

Chris Wyles does brilliantly under huge pressure from Northampton.

Again it is a kick in behind, as JJ Hanrahan gets in behind Wyles, but the USA international just about manages to evade the defenders to kick clear.

Image source, Getty Images

Marcelo Bosch comes on for Duncan Taylor. His first involvement is to kick in straight into touch outside the 22... Not the best start.

Paul Hill replaces Kieran Brookes for Northampton.

Image source, Getty Images

Probably a summary of the game when Saracens steal the ball and have numbers out wide with a chance to run it, but instead put boot to ball for territory.

We're into the final couple of minutes at Sixways, and it looks like that eight-point advantage for Worcester over Newcastle may be just enough.

Meanwhile, down in Berkshire...

Mike Haywood for Dylan Hartley and JJ Hanrahan is in for Stephen Myler for Northampton. 

Kelly Brown comes on for Billy Vunipola for Saracens.

Saracens under lots of pressure now.

It comes out to Stephen Myler on the right who attempts a cross-field kick, but no one is in danger of catching it and Saracens have line-out 5 metres out.

Michael Paterson brings fresh legs to the Northampton pack and Lee Dickson is also on, replacing James Craig and Kahn Fotalui'i.

If you are a lover of scrum time, you have been spoilt rotten today at Franklin's Gardens.

After initial Northampton dominance, Saracens have won a fair few this afternoon and now the packs are looking very equal each time they crouch down.

Maro Itoje, now playing second-row, is penalised for offside and the touch finder from Stephen Myler gets Northampton deep into Sarries territory.

Image source, Rex Features

A succession of really intense scrums near the Saracens try-line, but eventually the visitors win a free-kick when Tom Wood attempts some hooking from flanker.

We may be try-less at a packed Franklin's Gardens, but there's been plenty of crossing of the whitewash elsewhere.

Now London Irish trail 31-14, Fergus Mulchrone's score closing the gap just a touch.

Saracens make a mess of the line-out but a knock on sees them win a scrum.

Jamie George and Michael Rhodes are the first replacements of the game for Schalk Brits and Alistair Hargreaves.

An excellent thrusting run from Schalk Brits through the middle for Saracens but as they work it wide it is knocked on. 

It's gathered by George North who beats two defenders in broken field play. Stephen Myler, knowing the defence is disorganised, kicks deep and Sarries have a line-out 8m from their try line.

Image source, Rex Features

... That's three from three now for Owen Farrell, who is as ice cool as ever off the tee.

The visitors have not done a huge amount for this lead but they are keeping the ball well so far this half.

The scrum initially stood still as all of the forward legs were locked out, but Saracens get a nudge on and demolish the Northampton pack.

A penalty is awarded and Owen Farrell lines up his third attempt of the afternoon...

Worcester still lead Newcastle 28-20 as we head into the final quarter at Sixways - but the Warriors' Twitter account isn't sounding too confident...

From a line-out on the Northampton 22, Saracens just about manage to keep possession with a whole pile of bodies across the turf.

The champions have themselves a scrum on the left side of the pitch.