Saracens 3-19 Waspspublished at 19 mins
Wasps show their strength at the set piece this time and force infringements from Saracens in the scrum.
Jimmy Gopperth can help them clear their lines as the scrum is wheeled.
Summary
Wasps stun Saracens with eight tries
Charles Piutau, Robson & Hughes score twice
Also tries for Gopperth & Young
Barritt & Hamilton tries for Sarries
Saracens remain top, Wasps up to fourth
Saracens 3-19 Waspspublished at 19 mins
Postpublished at 16:20 Greenwich Mean Time 14 February 2016
Joel Conlon
Saracens flanker on BBC Radio LondonQuote MessageIt was a hell of a start from Wasps. It looks like we've settled down and composed ourselves now. But it's important we get some points on the board."
Saracens 3-19 Waspspublished at 17 mins
Saracens show their dominance at the scrum and Wasps are penalised by referee Ian Tempest for not driving straight.
Charlie Hodgson kicks for the corner rather than at the posts.
Saracens on a mission here to claw back the early deficit.
Saracens 3-19 Waspspublished at 14 mins
Dan Robson almost pinches the ball to run it into Saracens' half, but his opposite number Ben Spencer puts in a big booming kick down the ground to put the pressure back on Wasps with a line-out on the edge of their own 22.
Alistair Hargreaves closes the gap too early as he jumps for the ball.
Postpublished at 16:14 Greenwich Mean Time 14 February 2016
Joel Conlon
Saracens flanker on BBC Radio LondonQuote MessageAs a neutral it's great to watch, but slightly worrying from a Sarries point of view."
Penalty (Hodgson)published at 11 mins
Saracens 3-19 Wasps
And Saracens finally get started in this one and it's the trusted boot of Charlie Hodgson.
Wasps infringe on the floor and concede a penalty dead in front of the posts.
Saracens 0-19 Waspspublished at 10 mins
If you've just joined us, where have you been?
Here's what you've missed. Ten minutes, three tries and all to the visitors.
Saracens are shell-shocked.
Saracens 0-19 Waspspublished at 9 mins
Can I take a moment to catch my breath?
Postpublished at 16:11 Greenwich Mean Time 14 February 2016
Joel Conlon
Saracens flanker on BBC Radio LondonQuote MessageIt seems a little bit flat. Our defence doesn't look as switched on as most weeks."
Try (Robson, con Gopperth)published at 8 mins
Saracens 0-19 Wasps
Well, what is going on here?
George Smith finds acres of space through the Saracens defence and he can calmly shift the ball to his scrum-half Dan Robson to almost walk it in.
Gopperth on target with the boot to add the extras.
Try (Young, con Gopperth)published at 5 mins
Saracens 0-12 Wasps
Wow! Some start this from the visitors.
From inside their own 22, Josh Bassett bursts down the left and then offloads inside to Thomas Young.
From one end to the other, Wasps have stung the defending champions early.
Image source, Getty ImagesTry (C Piutau, Gopperth missed con)published at 3 mins
Saracens 0-5 Wasps
From five metres out, Christian Wade is brought down. Wasps work it left, Elliot Daly is almost there, but they keep their composure, find the numbers out wide and Charles Piutau gets the early try.
Jimmy Gopperth not on target though from the tee with the conversion.
Saracens 0-0 Waspspublished at 3 mins
Early fumble in the air by Wasps gives Saracens an opening scrum.
Ben Spencer with the put-in. But, Wasps turn it over and Christian Wade gets to burst on to the long kick forward.
Kick-offpublished at 1 min
Saracens 0-0 Wasps
And here we go....
Charlie Hodgson gets us started.
Can Wasps reverse this rather unwelcome stat?
Teams on way outpublished at 16:00 Greenwich Mean Time 14 February 2016
It's a short walk from the changing rooms to the touchline at Allianz Park and Wasps are the first to make it.
George Smith the man leading them out in their change shirts of white, black and gold.
Familiar facespublished at 15:57 Greenwich Mean Time 14 February 2016
Saracens v Wasps (16:00 GMT)
It's not that long ago since these two teams were last going up against each other - five rounds ago on 27 December to be precise.
Saracens took the festive spoils on that day at the Ricoh Arena in a 26-16 victory.
Owen Farrell - who was otherwise engaged in Rome this afternoon in England's 40-9 win against Italy - contributed 21 of those points. Duncan Taylor chipped in with the other five.
Image source, Getty ImagesPostpublished at 15:57 Greenwich Mean Time 14 February 2016
Saracens v Wasps (16:00 GMT)
Joel Conlon
Saracens flanker on BBC Radio LondonQuote MessageIt's going to be a hell of a battle out there. You look at the team sheets and there's still a lot of world class players on the pitch today. It's very exciting."
Listen livepublished at 15:55 Greenwich Mean Time 14 February 2016
Saracens v Wasps (16:00 GMT)
A reminder you can choose from two BBC Local radio commentaries for this fixture.
BBC Radio London and BBC Coventry & Warwickshire are both set up to bring you the action at Allianz Park.
If you're also near a digital radio, BBC Radio 5 live sports extra will also have full match coverage.
Make your choice by clicking on the Live Coverage tab at the top of the page.
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End of twitter postAs it standspublished at 15:54 Greenwich Mean Time 14 February 2016
Saracens v Wasps (16:00 GMT)
Results elsewhere this weekend have so far gone in Saracens' favour, but not Wasps'.
Exeter's defeat at Sale on Saturday means the defending champions can stretch their lead further with a win today.
Wins for Northampton, Sale and Gloucester yesterday have seen Wasps slip to eighth.
But, Dai Young's side could climb as high as fourth with a win.
Image source, BBC SportGet involvedpublished at 15:52 Greenwich Mean Time 14 February 2016
#bbcrugby
Image source, BBC SportIf you'd like to get involved with the last action of round 12, you can get in touch by using #bbcrugby on Twitter.
And, speaking of Twitter, if you're not doing so already you can follow @bbcrugbyunion, external for all the latest rugby union chatter, both domestic and international.