D1 leaders Surrey enforce follow-on after bowling out Warwickshire for 161
Hampshire's Liam Dawson out for 115 against Somerset at the Ageas Bowl
Lancashire's Josh Bohannon passes 1,000 Championship runs for the season
Middlesex's Josh de Caires takes 7-105 against Essex at Chelmsford
Durham's Alex Lees hits fifth Championship hundred of the season against Sussex
Leicestershire bowled out for 204, but lead Gloucestershire by 45 on first innings
Essex 11-0 v Middlesex
A four off both Toby Roland-Jones and Ethan Bamber for Sir Alastair Cook as he gets the Essex score ticking over.
This is a used wicket at Chelmsford and it is noticeable how much to one side of the square it is.
There will be a few sixes over midwicket in this match guaranteed.
Surrey 343-6 v Warwicks
Image source, Getty Images"That is just top-class bowling by Ed Barnard," says BBC Radio London's Mark Church as the Warwickshire all-rounder picks up his second wicket in three balls.
The delivery which removed Cameron Steel flattened the off stump and that one was just as good, cutting back and knocking out middle.
Barnard now has figures of 4-46 - and still has one ball left to complete his 16th over. Warwickshire have a second bowling point.
Surrey 343-5 v Warwicks
Just what Warwickshire wanted - Ed Barnard claims his third victim of the Surrey first innings, all of them bowled.
Not much Cameron Steel could do about that, it was a cracking delivery, but it ends his 156-run stand with Ben Foakes.
Good call by Bears skipper Will Rhodes to give Barnard the second over in preference to Oliver Hannon-Dalby.
Quote MessageThat just did enough. Nicely bowled."
BBC Radio London's Mark Church
Worcs 284 v Glamorgan 3-1
Joe Leach strikes with just the second ball of the day to give Worcestershire an early wicket.
It's angled across Eddie Byrom, and the Glamorgan opener can only edge an excellent delivery to Adam Hose at first slip.
Durham 6-1 v Sussex 266
An early setback for the D2 leaders as Michael Jones falls to the fourth ball of the second day's play at the Riverside.
It's not a great shot - he dangles his bat at a wideish one from Ari Karvelas and Oli Carter does the rest.
Essex 1-0 v Middlesex
Image source, Getty ImagesJayant Yadav has taken 16 wickets in six Tests for India
Middlesex had hoped to have India spinner Jayant Yadav in their bowling line-up at Chelmsford this morning.
However, the club has released a statement this morning to reveal that due to visa issues, Yadav did not make it out of India over the weekend as hoped, and so he is unavailable for this match.
They will hope that he can play in their three subsequent Championship matches.
Surrey 339-4 v Warwicks
No two ways about it for Warwickshire at The Oval - they need wickets, and they need them fast.
Although they have a game in hand on Surrey, victory in this match is pretty much essential.
Ben Foakes - 112 not out - is on strike to face Chris Rushworth.
Quote MessageIt was glorious yesterday, it's even more glorious today."
BBC WM Sport's Richard Wilford
Guilty of an oversight. We meant to include the tables below in yesterday's live page but forgot.
Anyway, this is how the top of the divisions looked at the start of the current round of matches.
There are a few bonus points to add following the opening day's play in seven of our games, but we'll let you do the arithmetic yourselves.
Image source, BBC Sport
Image source, BBC SportBall by ball commentary for you from eight games today, provided by our BBC local radio teams.
Choose an audio stream from the promos at the top of the page and follow our regular text updates to find out what is happening at the other seven grounds.
Essex v Middlesex (10:30 BST)
Image source, Rex FeaturesThe news from the middle in Chelmsford is that Essex have won the toss and are going to bat first this morning.
As expected, India bowler Umesh Yadav makes his debut in what looks a very strong bowling unit.
Essex: Browne, A Cook, Westley (c), Lawrence, Critchley, Walter, Rossington (wk), Harmer, Yadav, S Cook, Porter.
Middlesex need points of their own as they look to pull away from the relegation spots as they give a first Championship game of the summer to Joe Cracknell in the middle order - but Jayant Yadav has to wait for his debut.
Middlesex: Stoneman, Robson, Holden, Cracknell, Davies, Higgins, Simpson (wk), de Caires, Hollman, Roland-Jones, Bamber.
Surrey 339-4 v Warwicks (play starts 10:30)
Image source, Getty ImagesSurrey opener Dom Sibley hailed Ben Foakes as a "class act" despite being run out in a mix-up between the pair on day one at the Oval.
Sibley looked well set on 65 when Foakes failed to answer his call for a single as bowler Danny Briggs moved across in front of him.
But Foakes went on to make 112 not out, with Jamie Smith contributing 60, as the Division One leaders put themselves in a strong position against one of their potential title rivals.
"It was a bit tacky early on, as it can get with these 10.30 starts in September, and we had to work hard against the new ball, but then Jamie Smith came in and played a different game to the rest of us. Ben Foakes is also a class act and he played superbly for his hundred," Sibley said.
Hants 282-7 v Somerset (play resumes at 10:30)
Image source, Rex FeaturesHampshire all-rounder Liam Dawson was delighted to mark the return of Championship cricket with a century as Hampshire fought back from 135-5 on the opening day against Somerset.
They need a win to stay in the title picture and Dawson hit 13 fours in a 192-ball knock and ended the day unbeaten on 109.
"The pitch is on the slow side and scoring can be a little tricky at times. But if we can potentially get 350, then we're really in the game," he told BBC Radio Solent Sport.
"No-one's played much red-ball cricket (recently), so ideally I just wanted to try and bat for as long as I could and give myself chance - and it came off."
Leics 103-2 v Gloucs 159 (play resumes at 10:30)
Image source, Getty ImagesLeicestershire opener Rishi Patel could become the fourth player to reach 1,000 runs for the season if he can add another 50 to his overnight 60 not out at the Uptonsteel County Ground.
The Foxes dominated the opening day, with pace bowler Tom Scriven taking 4-30 in Gloucestershire's first innings, and he believes Patel's biggest strength this season is consistency.
"Rishi continued how he has been all season. He has put in a lot of hard work and all the boys are chuffed with how well he is playing," Scriven said.
Leicestershire have the One-Day Cup final to look forward to later this month, but he added: "It is important that we park that for now. We are still pushing for promotion."
Worcs 284 v Glamorgan 3-0 (play resumes at 10:30)
Image source, Rex FeaturesDutch all-rounder Logan van Beek insisted Worcestershire were in a "satisfying" position despite being bowled out by promotion rivals Glamorgan on the opening day at New Road.
He marked his Championship debut for the Pears with 53 and shared a 101-run stand with captain Brett D'Oliveira, who eventually ran out of partners on 74.
"We walked into those changing rooms thinking ‘cool, we are in the game with that score,’" van Beek said.
"It felt like any ball could get you out at anytime. The ball never really came on as true as you would like. Every ball felt like a bit of a battle."
Essex v Middlesex (play starts 10:30)
Image source, Getty ImagesIn theory, starting a day later than the other seven games in this round could be an advantage for title hopefuls Essex.
But the batting efforts of leaders Surrey against Warwickshire means there may be some additional pressure on Tom Westley's side as they start out against Middlesex.
They have brought in India pace bowler Umesh Yadav for their final three games of the campaign and he has 288 wickets in all international formats.
Middlesex, though, have a Yadav of their own, having signed spinner Jayant Yadav in time for the game at Chelmsford.
County Championship (play starts 10:30)
A BBC Weather graphic for the week ahead contains only sun symbols, which is very good news from a cricket perspective.
Average temperatures across the UK for the next three days are likely to be around 26 or 27 C before getting even warmer.
After first day's play
Division One
Hampshire 282-7 v Somerset
Northamptonshire 232 v Lancashire 54-2
Surrey 339-4 v Warwickshire
Division Two
Durham 6-0 v Sussex 266
Leicestershire 103-2 v Gloucestershire 159
Worcestershire 284 v Glamorgan 3-0
Yorkshire 297 v Derbyshire 47-1
Image source, Rex FeaturesThe late Francis Albert Sinatra once sang of "the warm September of my years" and although he is no longer with us, it looks like the new month is just what he had in mind.
We had uninterrupted play in seven County Championship matches yesterday and as they are joined today by Essex v Middlesex, it looks like another full day is in store.
Welcome to our coverage. Play starts at 10:30.