Fergus O'Neill is giving nothing away here as James Coles plays defensively into the off side, then ends the over blocking down the ground.

Maiden over.

Josh Tongue is back in the attack for Notts and Sussex skipper John Simpson is also watchful.

Sussex lead by 10.

A lovely straight drive from Ben McKinney off Matthew Waite ticks another two runs off the ask.

He has 34 and this looks increasingly like a match-winning knock.

36 runs needed. Or seven wickets, of course...

Derbyshire 472 v Middlesex 61-2

The visitors suffer their second loss of their innings following an excellent catch from Brooke Guest, with Martin Andersson picking up his first wicket after his brilliant batting display to dismiss his former skipper Stephen Eskinazi (27).

Max Holdon (15*) will be looking to build a longer partnership with newcomer Leus du Plooy (3*) as they look to cut the deficit.

With a minimum of 15 overs remaining they will be hoping to avoid any further losses today.

New ball taken at the Ovalpublished at 17:16 British Summer Time

17:16 BST

Surrey 259-4 v Somerset 283

17 overs left tonight and 16 of those could be with a new ball if Somerset take it at the first opportunity.

A wild short ball from Kasey Aldridge sends the ball high over the keeper's head for a wide plus a single.

James Rew did well to get a glove on that and prevent the four.

A single to Ben Foakes, working the ball to long leg.

The new ball is taken straight away and Josh Davey will bowl.

Jacob Duffy returns to the attack and finds the edge of Ollie Robinson's bat with his first ball but it loops past third slip leaving Duffy with his head in his hands.

Robinson is hanging in there with a rather streaky eight off nine balls.

Frank Watson
BBC Hereford & Worcester

It looks as though Durham are working their way towards victory, but all it takes is a couple of wickets and things would look very different.

Ben McKinney has 31 but that's well worth 50+ in a game like this.

Ben McKinney moves to 30 and is the absolute protagonist in this dramatic finale.

He is hogging the strike and ticking the scoreboard over and his side need just 44 more runs to win.

If the Pears can prise him out, however, the game would surely enter a new phase...

He's 20-years-old. You can see why England rate him so highly. This challenge will do him a lot of good in years to come, you'd imagine.

John Simpson edges Sussex ahead with a controlled outside edge to run the ball to backward point for a single.

The Sussex skipper got off the mark in the previous over, sweeping Farhan Ahmed square for four.

22 overs left tonight and the lead is two.

Dan Lawrence takes Surrey past the 250-mark in the 78th over with a glance to fine leg off Kasey Aldridge.

Surrey are 31 behind with the game in the balance.

Dave Bracegirdle
BBC Radio Nottingham commentator

You never know with cricket, this pair could be batting for a long time.

It would take a huge effort from them, though.

Anthony Gibson
BBC Radio Somerset

Some lovely shots from Jamie Smith in that innings, but an ugly end.

On the whole, the Somerset bowlers have been pretty tight after tea.

Matthew Waite's first ball to Ollie Robinson tempts him into a swish which sees a thick edge fly over the slips and away to the rope at third.

Precious runs, but owing more to luck than judgement.

Another tidy over from Fergus O'Neill, costing just a couple of runs.

The four Sussex wickets to fall have been shred by him and off spinner Farhan Ahmed, who is bowling with the skill and confidence of a player well beyond his 17 years of age.

Oli Carter runs a very tight single to the leg side and James Coles has to dive at full stretch to beat the return throw.

He's now covered in dirt and may have ripped one of his gloves.

A poorly judged run and the scoreboard pressure is very telling.

Ben McKinney moves on to 28, beating his first innings score, with a nice stroke to the rope off Ben Allison.

He's ridden his luck but five boundaries have given his side a great chance of sealing their first win of the campaign, and a couple of bonus days off.

Getting quiet in the Pears field.

50 up for Durhampublished at 16:53 British Summer Time

16:53 BST

Durham 50-2 - target 108 to beat Worcestershire

Ben McKinney picks up a fvery ortunate four as he gets a bottom edge to a wild swipe which flies behind the stumps and to Gareth Roderick's right on its way to the rope.

58 more needed.

Jamie Smith is back and across to Jack Leach, lashing the spinner through extra cover for four - and that shot brings up the 50 partnership with Ben Foakes.

113 balls.

Quite the turnaround for Notts.

The hosts were scratching their heads for inspiration when the Sussex openers were rattling along at five runs an over this afternoon, but now the runs have dried to a trickle.

Oli Carter is back and across to Farhan Ahmed to try and force the ball away off side but there's no run.

Sussex remain 17 runs in arrears.