FT: Saracens 53-10 Bath
Champions Saracens run in eight tries
FT: Wasps 40-33
Wade crosses twice for Wasps
Worcester have Heem sent off
Wasps 26-19 Worcester
Image source, Rex FeaturesThe hosts possibly get away with one here...
Try-scorer Alapati Leiua appears to accidentally catch Worcester's Chris Pennell with a swinging arm.
Pennell is off for a head injury assessment, while Leiua's only punishment is to concede a penalty.
Around 17 minutes left.
Saracens 20-10 Bath
No problems with the wind for Owen Farrell who is successful with his first kick of the second half.
It's a lead into double figures now for the English and European champions.
Saracens 17-10 Bath
Image source, Getty ImagesA couple of bruising hits to start the second half. Both these teams have come out with some purpose.
Saracens 17-10 Bath
We're back underway at Allianz Park through George Ford.
Wasps 26-19 Worcester
Warriors seem safe, but get turned over and before you know it Alapati Leiua has powered over for a Wasps bonus point try.
The Samoa international has a team-mate outside him but goes it alone, diving over in style.
Jimmy Gopperth converts and Worcester must surely be looking at emptying their bench now.
Wasps 19-19 Worcester
Warriors have not won away at Wasps since New Year's Day 2011 - given they've had Bryce Heem sent off, it seems unlikely to happen again today despite their efforts.
Having said that the visitors are still pushing forward at the Ricoh Arena, and they win a penalty at the maul.
HT: Saracens 17-10 Bath
Would have you made of that first 40 minutes in North London?
As always, your views welcome in the rugby debate at #bbcrugby.
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Wasps 19-19 Worcester
Warriors have more than half an hour to survive with just 14 men now.
Meanwhile Wasps took off England international James Haskell ahead of the second half, with Guy Thompson taking his place.
No word on whether it's an injury that forced Haskell off.
Saracens 17-10 Bath
Image source, Rex FeaturesWith Saracens three tries to the good and having more of the wind in the second half, they look well set for a win.
Bath have been impressive in glimpses but they will need a lot more after the break if they're to come away with four points.
Saracens 17-10 Bath
Image source, Rex FeaturesThe television match official is happy with all of the things that could've ruled this out.
Sean Maitland just about pushes the ball down before the dead ball line as he latches onto Alex Goode's clever grubber kick - Owen Farrell misses his conversion.
Wasps 19-19 Worcester
Image source, Rex FeaturesHe's already scored a try and had one disallowed, and now Worcester's Bryce Heem has been sent off after taking Willie le Roux out of the air.
It was accidental and may seem harsh, but by the letter of the law referee Luke Pearce had no choice.
Le Roux is back on his feet after receiving lengthy treatment on the pitch.
Saracens 12-10 Bath
Lots to check here for the TMO, but it looks, on first viewing, that Sean Maitland has Saracens' third try.
Saracens 12-10 Bath
Bath miss the chance to take the lead for the first time in this game as George Ford horribly pulls his kick wide.
His strike never seemed clean and, on this evidence, you can see why Owen Farrell is England's preferred goal kicker.
Wasps 19-19 Worcester
Danny Cirpiani gets things underway again at the Ricoh Arena for Wasps.
His restart is poor and Worcester get the scrum - a sign of things to come?
Saracens 12-10 Bath
This is not a decision of international quality from Sean Maitland.
The Scotland wing is chasing back a Matt Banahan kick through and instead of waiting it to bounce over the try line and dot down for a 22 drop out, he carries it over and now Bath have a scrum five metres away.
I'm not sure Maitland will be too popular with the Saracens pack right now.
Saracens 12-10 Bath
Image source, Getty ImagesSaracens are back on the attack again in response to that Bath try but nothing comes of it.
A couple of reset scrums just takes the pace out of the game.
Saracens 12-10 Bath
Image source, Getty ImagesThey didn't score off first phase from the scrum, but this is a classy score from Bath.
Jonathan Joseph just holds onto the ball for an extra half second to create a hole for Anthony Watson to burst through, and the England winger sprints into the gap to cross with a couple of tacklers on him.
George Ford knocks over his second kick and it is game on when it looked like Saracens might blow Bath away at the start.
Saracens 12-3 Bath
Bath beginning to grow into this game as Jonathan Joseph's kick and chase allows Anthony Watson to drag Richard Wigglesworth back over his own line to give the visitors a five metre scrum.
Really attacking platform this for Bath to get a first try.
Saracens 12-3 Bath
Austin on Twitter: Just brilliant from Saracens. Team try of the year. Boring Saracens? Not a chance.
Wasps 19-19 Worcester
That was a whirlwind, topsy-turvy 40 minutes of rugby.
Josh Adams scored two tries for Worcester and Christian Wade has done likewise for the leaders.
Will Rowlands has also gone over for Wasps, with Bryce Heem going over to complete the scoring.