Essex beat Worcestershire by four wickets off final ball
Eagles win T20 Blast for first time in their history
Captain Harmer hits winning runs after taking 3-16
Essex beat Derbyshire by 34 runs in second semi-final
Worcestershire beat Notts by one run in first semi
Essex 145-5 v Derbyshire
Ebony Rainford-Brent
Ex-England batter on BBC Radio 5 Live Sports Extra
That's a big wicket in the context of giving Bopara three overs to finish the game he can really hurt you but it's also well done by Rampaul, he saw him go early and just adjusted at the last minute.
Paul Walter is the new batsman in and the Eagles will hope he can get a shift on.
The over doesn't end very well for Derbyshire, however, as a ridiculous mix-up in the field allows Adam Wheater to snatch three when it probably should've been just one.
Twelve balls to go.
Essex 141-5 v Derbyshire
Is it about time for one of these two batsmen to have a bit of a dig? Ravi Bopara thinks so and, well, it's not ended brilliantly.
He attempts a scoop shot against Ravi Rampaul, who's been bowling at a decent pace since coming back into the attack, but can only plonk his effort straight to Luis Reece.
Not pretty.
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Image source, Janet HopperHeartbreaking.
Adam Wheater and Ravi Bopara are really struggling to get it away - we've not had a single maximum in the innings yet.
There's a bit of drama midway through the 17th over as Matthew Critchley bowls a beamer and the Eagles will have a free-hit - but the spinner's recovery is an excellent one, arrowing a quicker ball down at the batsman's feet.
Essex 129-4 v Derbyshire
Ian Bell
Former England batsman on BBC Radio 5 Live Sports Extra
It's nicely balanced but Essex are still in a real nice position. They've got their form player in Ravi Bopara at the crease and if he can do what he's been doing all season then I'm sure they will get a score that they'll feel confident in defending.
Wheater 6, Bopara 21
Luis Reece has been very tidy, claiming 2-18 from his three overs so far. As I said before, taking pace off the ball is doing the job just nicely for Derbyshire.
Four overs left in the Eagles innings.
Image source, Rex FeaturesWe're three quarters of the way through the Essex innings and the Eagles are going at 8.20 - but can they sustain it?
Eight runs come from the 15th over, with only a brilliant bit of fielding from Alex Hughes preventing a boundary diving on the rope at fine leg.
Where now for Essex?
They've barely mustered a run during the past five overs or so - but we saw from the first semi-final that this isn't necessarily a pitch for big totals.
Adam Wheater joins Ravi Bopara in the middle.
Essex 107-4 v Derbyshire
At one point it looked as though this could get a bit messy for Derbyshire, but they've come back brilliantly in the middle overs.
Tom Westley attempts a lofted sweep shot but lands his stroke straight into the hands of Alex Hughes, who takes his second catch of the semi-final.
He's out for 39 from 34 balls.
Westley 39, Bopara 8
It's a good start from Ravi Bopara!
He ends the boundary drought by guiding Alex Hughes for four, but the spinner comes back well to limit Essex to nothing more than a few singles from the rest of the over.
Hughes ends with figures of 2-24 from his four sets of six, which isn't to be sniffed at.
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Jacob Coton: My brain is so confused at the moment... I really want Derbyshire to win the Blast today because it would be the ultimate underdog story, but also want Somerset to win next week which means Essex need to win so they are hungover for the big one on Monday.
Wickets win matches and the runs have really dried up here for the Eagles, who are struggling with pace taken off the ball.
No boundary for 16 deliveries and the pressure is on Ravi Bopara to come in and hit the ground running.
Essex 96-3 v Derbyshire
Now this is a big wicket for the Falcons!
Luis Reece is into the attack and makes an instant impact, trapping Ryan ten Doeschate in front as Essex lose a second batsman in the space of six deliveries.
There's plenty of experience at the crease now with these two here.
After a 78-run opening stand, there's no doubting that Derbyshire need wickets if they're to keep the score sensible.
Essex 93-2 v Derbyshire
Another one for Alex Hughes!
Dan Lawrence attempts to smash the spinner into the stands but can only get a thick outside edge straight into the hands of Matthew Critchley.
Here comes Ryan Ten Doeschate...
Westley 33, Lawrence 2
Image source, Rex FeaturesTom Westley gets down on one knee and smacks Matthew Critchley down to cow corner for four. A couple of balls later, he attempts to loft the spinner to the off-side boundary but can only pick up a couple.
I wonder if the former England man will adopt the role of aggressor now Cameron Delport has departed?
Dan Lawrence is the new man in, by the way.
Essex 81-1 v Derbyshire
Lydia Greenway
Former England batter on BBC Radio 5 Live Sports Extra
Of course Cameron Delport will be disappointed but he's done his job.
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Paul Dulieu: Listening to T20 Blast Finals Day on BBC Radio 5 Live Sports Extra from the Congo. It doesn’t get much more surreal than this but, regardless of where I am, I wouldn’t miss the mighty Essex trying to do the double!
Somerset fans might have something to say about that next week Paul!
That's a really superb over from Alex Hughes, who gets the wicket of danger man Cameron Delport and limits Essex to just three singles.
The Falcons could do with a bit more of that, truthfully.