127 wickets fall across nine matches in both divisions
Champions Essex fight back with ball against Lancashire after making just 150
Australia's Matt Renshaw scores 100 on debut for Somerset v Worcestershire
South Africa opener Aiden Markram makes a pair on the same day on his Durham debut
Essex 150 v Lancashire 4-1 (2.2. overs)
Image source, rexEssex with the early breakthrough in Lancashire's reply.
Keaton Jennings nibbles at one from Jamie Porter outside his off stump and edges through to wicketkeeper James Foster.
Porter off and running after his fantastic season full of wickets last year.
Somerset 202 (56.1 overs) v Worcestershire
Tim Groenewald gets a ball far too good for a number 11 from Josh Tongue and edges it behind to Ben Cox.
That leaves Matt Renshaw unbeaten on 101 at the other end. Ed Barnard finishes with figures of 5-52.
Image source, Getty ImagesIn you missed it earlier, former Kent, Middlesex and England batsman Ed Smith has been named as the new national selector by the ECB.
Read the full story below...
Former England batsman Ed Smith is named new national selector for the England and Wales Cricket Board.
Read MoreSurrey 159-4 (55.4 overs) v Hampshire
Ben Foakes and Ollie Pope - two English batsmen of great potential - have slowed the game down at the Oval with a partnership of 45 runs in 14 overs following the wickets of Rory Burns and Dean Elgar.
Somerset 197-9 (54.4 overs) v Worcestershire
Jack Leach gloves one down the legside to wicket-keeper Ben Cox to give Josh Tongue his first wicket of the innings.
Matt Renshaw looks like he's going to be left stranded. Only Tim Groenewald left.
Essex 150 (50 overs) v Lancashire 0-0
And they're already back up and running at Chelmsford.
England hopefuls Keaton Jennings and Haseeb Hameed are out there opening Lancashire's reply.
Jamie Porter with ball in hand for Essex.....
Essex 150 (50 overs) v Lancashire
Scott Read
BBC Radio Lancashire at Chelmsford
Image source, Rex FeaturesTea being taken at Chelmsford, or to be more accurate ice cream and cold drinks.
Peter Siddle and Jamie Porter with a last wicket partnership of 37 helping Essex to reach 150 in their first innings before the run out of Jamie Porter.
Lancashire won't be too discouraged with that final wicket stand as it seemed to show that batting became a little easier.
After last weeks second innings collapse the Red Rose top order have a chance to make amends this afternoon in what could be a long and hot final session of the day for Essex.
Somerset 197-8 (54 overs) v Worcestershire
Image source, Rex FeaturesWonderful stuff from Matt Renshaw, who drives Daryl Mitchell for four to move to 100 off 137 balls.
He's held the innings together on debut to score an eighth first-class century.
Durham 91 v Kent 88-4 (25.1 overs)
Martin Emmerson
BBC Newcastle
Having been dismissed for just 91 Durham have now fought back with the ball. Although Daniel Bell-Drummond fell for a duck in the 3rd over, lbw to Chris Rushworth, Kent recovered and had 67 on the board before the next wicket fell.
But the departure of Sean Dickson for 41 has sparked a mini collapse. Paul Collingwood took a wicket in his first over as he bowled Joe Denly for eight. The deficit was 12 at that point and 11 when the next wicket fell as Nathan Rimmington returned to the Durham attack and bowled Zak Crawley for one.
At 88-4 Kent are still three runs behind.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
BBC Sport app users may need to click 'view more' to see this tweet.
Somerset 190-8 (53 overs) v Worcestershire
Anthony Gibson
BBC Somerset
A maiden five-wicket haul for Ed Barnard as Matt Renshaw closes in on a debut century for Somerset. 190-8 is a much fairer reflection of state of pitch than 105-3 at lunch.
Barnard now goes off for a rest having bowled a wonderful spell.
Essex 150 (50 overs) v Lancashire
Glenn Speller
BBC Essex sport at Chelmsford
A spirited last-wicket partnership of 37 between Peter Siddle and Jamie Porter put some respectability on the Essex score with Siddle finishing top scorer with an unbeaten 33.
Lancashire bowled well in helpful pitch conditions, but at least three of the Essex batsmen contributed to their downfalls with some rash shots.
It will be interesting to see how Lancashire bat on the surface and whether there are any scars from last week's collapse to Nottinghamshire.
So two sides have already been bowled out today. One after being put in, the other having opted to do so.
Kent are now 79-2 in reply to Durham's measly 91 all out at Chester-le-Street.
Northants as mentioned earlier, were dismissed for just 147 at Wantage Road against Warwickshire. 6-35 for Ryan Sidebottom for the Bears.
Essex 150 (50 overs) v Lancashire
Peter Siddle was doing the business at one end but as he tried to keep the strike from the last ball of that Matt Parkinson over, he sold his partner Jamie Porter short.
The Essex seamer is left metres short of getting in to his ground and he is the last man out.
Last wicket adds 37 for the champions, but they take no batting points from that and Lancashire bag all the bonus points.
Over to the Essex bowlers....
Essex 150-9 (50 overs) v Lancashire
Image source, Rex FeaturesPeter Siddle again uses his long handle to prize a few more runs out for Essex in this disappointing first innings effort.
He launches Matt Parkinson for a maximum out of the ground.
Somerset 182-8 (49.4 overs) v Worcestershire
Five wickets for Ed Barnard! Josh Davey is trapped in front and Somerset's first innings is sliding towards its conclusion.
Image source, Getty Images#bbccricket
Dave: No openers really putting their hands up for Stoneman's England place so far, appreciate early doors and tough conditions but...
Indeed. Haseeb Hameed has not been forgotten, but Middlesex's Nick Gubbins is perhaps the next in line after impressing in the North v South series. His injury may give others a chance.
Essex 141-9 (48 overs) v Lancashire
Image source, Rex FeaturesPeter Siddle and Jamie Porter bring up Essex's largest partnership of the innings to date at just 28.
Promising start for Siddle (26 not out) on his Essex debut.
Somerset 176-7 (48 overs) v Worcestershire
And another. Craig Overton becomes Ed Barnard's fourth victim, edging behind to Ben Cox.
Matt Renshaw may not make it to a first County Championship hundred at this rate. He has 87.
Sussex 115-4 (49.2 overs) v Leicestershire
Adrian Harms
Sports reporter, BBC Sussex at Grace Road
Having been 52-3 at lunch, Sussex have mounted a recovery since the interval led by the experience of Stiaan Van Zyl and Luke Wright who posted a 50 partnership.
Van Zyl passed 10,000 first-class runs and his experience and patience in waiting for the bad ball has been evident throughout his innings.
However Leicestershire continue to bowl well, none more so than Mohammad Abbas whose 15 overs have cost just 16 runs.
And the pressure has just told, with van Zyl dismissed by Callum Parkinson for 44.
Image source, BBC SportCloudless skies in Leicester
Yorkshire 155-7 (48.1 overs) v Nottinghamshire
Luke Fletcher to Tim Bresnan.
Two of the games great characters and it's Fletch who has the last laugh on this occasion as he traps Bres leg before to keep up Notts' dominance.
And what a way for him to celebrate...
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
BBC Sport App users may need to tap “View More” to see above Tweet in full….