Josh Davey into his second over, bowling to Dom Sibley who goes half forward to glance the ball leg side for one.

Rory Burns is keen to flick to the on side but this next ball is too straight for the shot.

He'll get runs off the next ball, going forward and across to tap into the off side for one.

Davey drifts wide of leg and Sibley picks that off for one behind square.

A short ball is short-arm pulled behind square leg by Burns for four.

Four more whipped through mid wicket on the front foot.

18 to win.

39 needed after Logan van Beek rushes back for a second after guiding Ajeet SIngh Dale into the off side.

The bowler almost gets his revenge as van Beek shoulders arms to one which comes back a long way and somehow flashes past of-stump.

The best kind of leave, though the bowler is down on his haunches.

He gets up to beat the outside edge with the final ball of the over.

Somerset have actually been in this game up to and including lunchtime today.

Surrey have simply torn through them since then, despite a valiant half century from Migael Pretorius.

Dom Sibley is off the mark first ball facing Kasey Aldridge and Rory Burns defends down the ground

Aldridge gets away with a full toss but the next ball is a bit wide and driven to point by Burns for two.

In theory we have 45 overs left today but Surrey will surely only need a fraction of those.

Rory Burns and Surrey get off the mark third ball with one of the Surrey skipper's trademark clips behind square leg off Josh Davey for four.

Burns sees out the over turning the ball to mid on and now Dom Sibley will face Kasey Aldridge.

Richard Rae
BBC Radio Leicester Sport

That could be huge, Handscomb was steering them to victory.

Singh Dale was looking dejected but that could be huge.

Ben Cox is still out there and he's batting fluently.

This game turned on its head in the blink of an eye when Somerset lost four wickets for eight runs after lunch.

Woe betide anybody that got back to their seat a few minutes late after luncheon.

Migael Pretorius (54 off 45 balls) was the mainstay to avoid the innings defeat, but this target is no marathon.

Surrey captain Rory Burns and his regular opening partner Dom Sibley to start the chase.

Josh Davey will bowl to Burns.

Peter Handscomb spins in a sixpence and pulls Ajeet Singh Dale's shorter ball through square leg to the rope. 45 required.

Gloucestershire need to find an answer to these two.

Ben Cox carves Dom Goodman away to the rope past point, his fifth boundary, to move to 34* and bring up the 50 partnership with Peter Handscomb.

The ask is also less than 50 now...

Middlesex trail by 189 with three wickets at tea with plenty of work to do if they are to avoid a significant first innings deficit.

Ben Cox has moved to 30* with by far the most assured knock on a day which has seen 13 wickets fall, and it feels like the momentum has swung firmly back towards the leaders.

One wicket would change that, of course...

Still more than 10 overs remaining until tea. This could be done by then.

Dean Wilson
BBC Radio London summariser

Caught at first-slip Comfortably.

James Taylor finishes with 2-29.

With the three slips in there, they knew something was going to happen.

A job very efficiently done by the Surrey bowlers.

Ben Cox almost pops Ajeet Singh Dale straight back to the bowler as the quicker bowler replaces Josh Shaw.

It just fell a couple of feet out of reach.

Cox recovers to cut away a wide one from Singh Dale to the rope.

Cos and Handscomb have added 42 after coming together at 42-5.

59 required.

The Shire need to break this stand, soon...

Brilliant fielding from Surrey and the bowling attack has barely let up for the whole game.

The tea interval will be taken now and Surrey begin a small chase in 20 minutes.

Haseeb Hameed walks off unbeaten on 62 alongside Ben Duckett who really enjoyed himself racing to 59 in 31 balls.

It is a second win of the season for Notts who maintain their position at the top of Division One.

Sussex lost this match in a first innings in which Josh Tongue (5-44) and Brett Hutton (4-53) wreaked havoc.

It was clearly a good toss to win but there was something in this pitch for everyone with batting relatively comfortable on this third and final day.

John Simpson and Jack Carson, with an 87-run partnership for the eighth wicket, showed what was possible.

Notts were never in any danger in their chase with Hameed and Duckett bringing home a 21 points win.

For Sussex this was a first defeat of the season following their promotion back to the top flight but there are plenty of reasons to be hopeful they will stay in the first division.

No surprise to see Dom Goodman reintroduced into the attack.

Another leg-side clip from Ben Cox off Josh Shaw found the rope to end the previous over and took Cox to 20* and reduce the ask to 70.

That's now 64 as Goodman struggles with his line allowing Peter Handscomb to pick up his first boundary to reach 18.

You'd imagine Ajeet SIngh Dale might be back next too.

Ben Foakes had to go for that catch. The lone slipper was too wide to take it and goodness me, that's a stunning display of keeping.

A slip and a leg slip in for Dan Lawrence, bowling to Jack Leach.

Leach is off the mark with a deflection to square leg going forward.

Anthony Gibson
BBC Radio Somerset

A brilliant catch from Ben Foakes, he somehow managed to get a glove under it.

Pretorious' innings is ended by a quite brilliant moment.

Well batted by him, 54 he made from 45 deliveries, but a stunning catch.