FT: Exeter 38-40 Harlequins
Harlequins crowned Premiership champions for first time since 2012
Quins had led 19-14 at half-time after scoring three tries
Exeter reclaimed lead inside last quarter after Sam Simmonds and Ollie Devoto tries
Two Louis Lynagh tries put Quins on verge of title
Stuart Hogg replied with try to give Chiefs hope but Quins held on
Exeter 14-26 Harlequins
Exeter have thrown Stuart Hogg on as well as Don Armand as Richard Capstick and the injured Alex Cuthbert make way.
What do they have in response? Is the comeback on now that they've sent on the talismanic Hogg?
I think we're in for an thrilling finale here.
Exeter 14-26 Harlequins
Penny for the thoughts of Rob Baxter right now.
His Exeter side are surely staring down defeat here, with a 12-point deficit to bridge and facing a Harlequins side who are absolutely pelting them every time they get the ball.
Reigning champions they may well be, but Quins clearly didn't turn up to be intimidated.
Exeter 14-26 Harlequins
Matt Dawson
Former England scrum-half on BBC Radio 5 Live Sports Extra
“For the reigning Premiership champions, Exeter are playing mid-table rugby here.
“The decision making is woeful and I can’t quite make out why.
"There’s a severe lack of communication, which is so unlike them.”
Andre Esterhuizen, con Marcus Smith
Image source, Getty ImagesWhat a start from Harlequins!
This is an absolute peach of a try, as Quins overwhelm Exeter with a succession of passes, with Joe Marchant driving toward the line before he's tackled.
The ball is eventually worked to Andre Esterhuizen who crosses over the in the corner and Marcus Smith does well with the boot to add the extras.
Exeter 14-19 Harlequins
Alex Cuthbert looks to have ended his Exeter Chiefs career with some sort of injury as he clutches the back of his thigh in the early stages of this second half.
He's limping about the field and surely won't be able to carry on, here.
Exeter 14-19 Harlequins
We are back under way at Twickenham and Exeter could do with a pretty swift response here.
Harlequins have the momentum behind them. Can they keep it that way?
Exeter 14-19 Harlequins
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It certainly is Sonja!
HT: Exeter 14-19 Harlequins
Harlequins might be on top at the break, but what if Exeter edge them out and it's all even after 80 minutes?
Well, if that happens, there's a five-minute break before a period of extra time starts with two 10-minute halves.
If it's still level after that then the winner is whichever team has scored the most tries in the game, including extra time.
If that still doesn't separate them, then there is a place kick competition where three nominated kickers attempt to kick the ball through the posts from six designated positions on the 10 and 22-metre marks.
(Breathes) if it's still level after six kicks to each team, it goes to sudden death.
HT: Exeter 14-19 Harlequins
Brent Pilnick
BBC Sport at Twickenham
Image source, PA MediaWhat a superb end to that half from Harlequins.
It would have been quite easy to buckle having conceded a try and lost Marcus Smith for 10 minutes, but they regrouped superbly and out-Chiefed the Chiefs for that final part of the half.
We have a huge 40 minutes coming up.
HT: Exeter 14-19 Harlequins
Paul Grayson
Former Northampton and England fly-half on BBC Radio 5 Live Sports Extra
"Harlequins have rolled the dice.
"This is get rich or die trying from Quins. They're saying we don’t care, we came to win.
"There have been ebbs and flows, ups and downs. It's been a sensational half of rugby."
Exeter 14-19 Harlequins
Image source, Rex FeaturesAnd that brings the first half to an end and what an opening period it's been.
Right from the start, Harlequins looked up for this and, having weathered a storm of pressure from Exeter, they've gone in on top at the break.
A thrilling encounter, but what will the Chiefs have to say when they return?
Alex Dombrandt, con Marcus Smith
Image source, Rex FeaturesWhat a blow for Exeter and what a drive from Harlequins!
Alex Dombrandt works on to some good work from Quins as he's teed up from Marcus Smith to run through the Chiefs with ease.
Sensational stuff and the vociferous Quins support goes wild. Smith adds the extras.
Exeter 14-12 Harlequins
Harlequins are driving to the line once again and that try has certainly put them in the ascendancy heading towards the break.
This time, they work themselves to within just a few metres of the line and opt for a scrum after Exeter receive a warning.
Can Quins get themselves on top before half-time?
Exeter 14-12 Harlequins
As we rapidly approach the break, I wonder how much that post-hitting conversion attempt will come back to bite Harlequins.
Marcus Smith has returned from his stint in the bin, by the way.
What a half.
Exeter 14-12 Harlequins
Matt Dawson
Former England scrum-half on BBC Radio 5 Live Sports Extra
"What spirit Harlequins are showing right now!
"That was a tremendous set drill, going for the weak side of a fast ruck, he drove his feet and it didn’t matter how many Exeter players were there."
Wilco Louw
Image source, Rex FeaturesThat's been coming!
Right on half-time, Wilco Louw powers over the line with an incredible physical effort to ground the ball amid plenty of pressure from Exeter.
Harlequins miss the chance to go level, however, as Joe Marchant's kick hits the post.
Exeter 14-7 Harlequins
Exeter are penalised for infringing from the lineout as Harlequins try to send a grubber kick in towards the line.
Quins get another bite at it, this time it's much better, as Exeter are eventually called to be offside.
A scrum follows, pretty much on the verge of the line. A big moment just before the break.
Exeter 14-7 Harlequins
Matt Dawson
Former England scrum-half on BBC Radio 5 Live Sports Extra
Image source, Rex Features“There’s going to be someone on the Exeter side saying 'hang on a minute this game is nowhere near won yet'.
"Quins got in behind the defence and that’s all they need, a bit of space.”
Exeter 14-7 Harlequins
Just under 10 minutes remain in the first half and Harlequins make a break as they look to catch Exeter on the counter.
Some brilliant stuff from Quins sees them make up for their earlier error as they work the ball wide before kicking away for a lineout in a dangerous area.
A nervous Marcus Smith watches on from the sidelines.
Exeter 14-7 Harlequins
Brent Pilnick
BBC Sport at Twickenham
Image source, Rex FeaturesHarlequins really need to sort their defence out on their own line.
A yellow card was always coming with the amount of penalties they were giving up from close range.
Exeter have a chance to make this game very tough for Quins in the next few minutes.