Game ends in draw which means Essex win Bob Willis Trophy
Somerset declared on 272-7 setting Essex 237 in 80 overs
Essex's fourth domestic trophy in three years
Need 151 more runs to win
A bye off the first ball of the over from Jack Brooks, but the rest of it is impeccable from the headband-wearing Oxford United fan.
A minimum of 51 overs left to be bowled.
Vic Marks
Ex-England spinner on BBC Radio 5 live Sports Extra
There is pressure, there are no easy runs out there and even though runs may not matter for Essex, all batsmen feel more comfortable when they're just picking up a few runs and breaking up an over.
Lawrence 26, Walter 5
Three more to the total for Essex as Dan Lawrence and Paul Walter are content to deal in singles off Lewis Gregory.
Another 152 runs required and now Somerset turn to Jack Brooks for the first time in the innings from the Nursery End.
Need 155 more runs to win
Image source, Getty ImagesCraig Overton beats Dan Lawrence's outside edge with a jaffa.
He follows through in his run up right under the batman's nose and looks like he has a word or two to say to the Essex man as he turns back to his mark.
Lawrence undeterred though, adds a single with a clip into the legside.
Paul Walter also gets himself a single with a neat push into the covers.
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Ubique: Paul Walter will see Essex to victory.
Lawrence 24, Walter 2
Paul Walter off a pair for Essex in this match as he opens the face and gets two runs behind square to third man.
A touch of light rain in the air means Karl McDermott and his ground staff get off their sets below us and start motioning towards the covers at the Nursery End.
Could we be going off shortly?
Varun Chopra
Essex batsman on BBC 5 Radio Live Sports Extra
Now you can say the game is in the balance, it's very difficult to call.
Essex are possibly very marginally ahead in the game but with fourth innings pressure it could go either way with Somerset bowling really well.
It's a great opportunity for Dan Lawrence, if can play a match winning innings it'll be one to remember.
Lawrence 24, Walter 0
Four more to Dan Lawrence as he glances Craig Overton off his legs.
Moves him on to 24.
How big a role is this going to be for the England Lions batsman to play now?
Somerset fielders still shouting and clapping enthusiastically with every ball. They sense a real chance to get on top here.
Varun Chopra
Essex batsman on BBC 5 Radio Live Sports Extra
That's a massive moment in the game, Gregory looked like the main threat to Cook because all of the other bowlers haven't really troubled him and that looked like it was the only way of getting him out.
Cook didn't look too impressed with the decision and it was very unlike him to take his time to leave the field.
Image source, Getty ImagesTarget 237
Huge appeal from Lewis Gregory and Somerset to Paul Walter's second ball.
They're all pleading for the finger to go up, but in the end, Essex come through for a leg bye.
Dan Lawrence back on strike and he plays a superb straight drive all along the carpet for four to the Pavilion steps.
A Cook c Davies b Gregory 31 (Essex 68-3)
Big, big wicket!
Sir Alastair Cook is given out caught behind off Lewis Gregory for 31 and Somerset have the man they wanted.
Cook is less than impressed with the decision though and stands there baffled. He thinks the sound was his bat prodding against his front pad.
Umpire Russell Warren had little hesitation in raising the finger mind.
Image source, Rex Features
Image source, Getty ImagesNeed 169 more runs to win
That's not his face mask in that previous picture by the way, it's his snood.
Feels more like Rejkjavik than London at times today.
Back in the middle, Alastair Cook pushes another single out into the covers and Craig Overton almost forces Dan Lawrence to play on to his stumps, but the ball trickles off a pad and to safety for the Essex right-hander.
Just the one off the over.
A snapshot of how cold it is at Lord's...
Image source, Rex FeaturesTarget 237
Back at Lord's, just the one run of Lewis Gregory's over as Alastair Cook nudges himself on to 30 off 58 balls.
Essex need 170 more runs to win.
Southern Vipers 206-8 (46 overs) v Northern Diamonds
Rachael Heyhoe Flint Trophy: Georgia Adams hits 80 for Southern Vipers
In the Rachael Heyhoe Flint Trophy final between Southern Vipers and Northern Diamonds at Edgbaston, there are four overs left in the Vipers' innings.
Georgia Adams made a classy 80 earlier on and you can see a selection of her best shots above.
Follow the rest of the match meanwhile right here.
A Cook 30, Lawrence 19
Alastair Cook rides the bounce and guides the ball for a single down to third man.
Dan Lawrence leans into a lovely off drive between mid-off and extra cover for his third four.
That'll give him some confidence as these two settle back into things after lunch.
Target 237
Maiden over from Lewis Gregory to start this afternoon session.
Dan Lawrence defends stoutly to a set of six very testing deliveries.
Craig Overton will take up the Somerset charge from the Nursery End...
Essex need 176 more runs to win
Lewis Gregory to resume from the Pavilion End to Dan Lawrence....
Cheers Gary.
Well, unlike at Edgbaston where it looks bright and sunny, it's still grey and chilly here in London.
Floodlights still on in full effect.
This is going to be a pivotal half an hour you feel.
Strap yourselves in and enjoy...
Adam Williams will take you through what could be a match-defining session in this Bob Willis Trophy final.
He's ready and waiting at Lord's...