Penultimate round of 2017 matches
Five teams bid to avoid relegation
Yorkshire dismiss Warwickshire for 219
Surrey's Rikki Clarke takes seven v Somerset
Middlesex all out for 233 v Lancs
Somerset earn two batting points; Middlesex one
Northants host Notts in promotion battle
Get involved via #bbccricket
Middlesex 25-3 (8.3 overs) v Lancashire
Middlesex are definitely now wishing they hadn't chosen to bat first after winning the toss. They need a win, so prepared a lively pitch, but are now feeling its effects.
Stevie Eskinazi is squared up by a delivery from Tom Bailey and edges to Dane Vilas at third slip. The South African is normally a wicket-keeper so has good hands and clings on.
Sussex have lost Harry Finch, who fell lbw for a duck to Chris Rushworth, but have reached 18-1 against Durham at Chester-le-Street.
Glamorgan's run-rate is very healthy against Gloucestershire but they have lost Nick Selman and Colin Ingram to reach 50-2 from just 7.4 overs.
Derbyshire and Kent have been frustrated by a wet outfield at Chesterfield and are taking an early lunch. The umpires will inspect at 12:40pm.
Warwickshire 6-1 (8.3 overs) v Yorkshire
He was at the crease for half an hour and faced 30 balls, but Dom Sibley is gone for three runs as Jack Brooks gets the first wicket of the morning at Headingley.
Middlesex 19-2 (6.4 overs) v Lancashire
Kevin Hand
BBC Radio London
"No delay from the Lancashire bowlers, they have been on fire this morning.
"It's very difficult to see how Middlesex get to lunch from here."
Hampshire 14-2 (4.5 overs) v Essex
Jamie Porter is on fire at the moment. His 65th victim of the season in Division One is Joe Weatherley who is trapped in front after finding the boundary.
Image source, Rex FeaturesMiddlesex 11-2 (6 overs) v Lancashire
The ball is going all over the shop at Lord's with Middlesex now perhaps wondering why they chose to bat first. Sam Robson is the second batsman to walk back to the famous pavilion as Ryan McLaren catches him on the crease with a good delivery.
Stevie Eskinazi is joined by Dawid Malan at the crease after the left-hander wasn't selected by England for the ODIs.
Northants 12-2 (3.5 overs) v Notts
It's gets better for Notts. Ben Duckett is a dangerous batsman when he gets going, but Luke Wood has got rid of him courtesy of a return catch.
Northants in trouble already at Wantage Road.
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 the link to view this tweet.
Somerset 19-0 (4.4 overs) v Surrey
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’.
Marcus Trescothick is up to 15 from 14 balls so far. He looks to be in the mood, and the pitch looks really good for batting this morning at the Oval.
Middlesex 8-1 (4.4 overs) v Lancashire
Kevin Hand
BBC Radio London
"It looks as though Lancashire have got this ball singing now as you would expect them to really, with a 10:30 start in September on a green top."
Image source, Getty ImagesWarwickshire 1-0 (4.1 overs) v Yorkshire
At Headingley, three of the first four overs have been maidens, after Warwickshire won the toss and chose to bat.
Northants 1-1 (2 overs) v Notts
Great start for Division Two promotion hopefuls Nottinghamshire as Luke Wood pins Rob Newton lbw in his first over.
Notts are aiming to regain their top spot from Worcestershire and they've started perfectly.
Somerset 4-0 (2.0 overs) v Surrey
Having won the toss and elected to bat first in London, Somerset openers Marcus Trescothick and Ed Byrom are looking to set a decent platform for the visitors.
Surrey start this match 13 points above Somerset in the table.
Hampshire 0-1 (1.5 overs) v Essex
Essex begin their celebratory match well, as youngster Sam Cook traps Hampshire opener Jimmy Adams lbw in his first over.
Hampshire sit fourth in the Division One table, but with things tight they can't afford to take their foot off the gas. Looks a difficult day to bat so far.
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 the link to view this tweet.
Middlesex 0-1 (1.2 overs) v Lancashire
Nick Compton is the recipient of the unwanted 'first dismissal of the day award'. He's hit on the pad by Lancashire seamer Ryan McLaren, who has enjoyed yet another excellent season.
Lancashire have nothing to play for, but Middlesex most certainly do.
Image source, Getty ImagesGlamorgan v Gloucestershire (10:30 BST)
Nick Webb
BBC Wales Sport in Cardiff
No toss on a bright morning here in Cardiff, where both teams are without overseas batsmen.
Glamorgan give a debut to 20-year-old Connor Brown in place of the retiring Jacques Rudolph, who is 175 runs short of 20 thousand for his career, while Aneurin Donald and Ruaidhri Smith come in for Jack Murphy and Lukas Carey.
Cameron Bancroft has gone back to Australia and Gareth Roderick is injured, so Gloucestershire bring in Benny Howell and fit-again David Payne in a bowling-heavy eleven, and chose to use those bowlers first.
So, the penultimate round of County Championship matches are under way. What are we in store for?
Keep this page open throughout the day to find out.
County Championship, Day One
As with every round of fixtures, a dedicated army of BBC local radio commentators have journeyed across the country to set up camp at their respective match to bring you ball-by-ball audio commentary. Some of them were up at 04:00 BST...
So as well as following this live text service, you can also listen to the commentary of your choice - just select from the audio option at the top of this page.
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 the link to view this tweet.
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’.
Remarkably, given we're in mid-September and the summer already feels like a distant memory, we appear to have a dry, albeit windy, day for cricket.
Barring a wet outfield at Chesterfield, all games are set to start on time at 10:30 BST.
Image source, Getty ImagesThere are some big decisions to be made at this time of the season and Middlesex skipper James Franklin has made one, dropping himself from the side to face Lancashire at Lord's.
Nottinghamshire are without Jake Ball and Alex Hales, who are on England duty, and Brendan Taylor, who returned to Zimbabwe for personal reasons. Their strength in depth sees Billy Root, Tom Moores and Luke Wood come in.
Essex are unsurprisingly unchanged from the side which clinched the title last week, meaning there is no Alastair Cook.
Play starts at 10:30 BST
Division One
Hampshire v Essex - No toss, Essex will bowl first.
Middlesex v Lancashire - Middlesex won the toss and will bat first.
Surrey v Somerset - Somerset won the toss and will bat first.
Yorkshire v Warwickshire - Warwickshire won the toss and will bat first.
Division Two
Derbyshire v Kent - match delayed by wet outfield, pitch inspection at 12:40pm
Durham v Sussex - Durham won the toss and will bowl first.
Glamorgan v Gloucestershire - No toss, Gloucestershire will bowl first.
Northamptonshire v Nottinghamshire - No toss, Notts will bowl first.