Division One leaders Somerset declare and Hampshire need 418 to win
England's Jimmy Anderson suffers calf injury in Lancashire v Durham match
Warwickshire's Dom Sibley scores 200 and reaches 1,000 first-class runs for season
Ravi Bopara makes 135 as Essex declare on 519-9 against Notts
Yorkshire lead Surrey by 268 with one wicket remaining
Northants thrash Sussex by 393 runs, their first win of the season
Glamorgan's Marnus Labuschagne passes 1,000 all-Championship runs
England's Dawid Malan makes unbeaten 177 for Middlesex at Derby
Notts 213, Essex 408-5
Essex continue to accumulate and a bit more quickly too, now that Nick Browne has gone.
They have now gone past 400 - and Ravi Bopara has moved on to 89, while Adam Wheater has rapidly gone on to 18, hitting four boundaries.
Somerset 408 & 31-0 v Hampshire 349
Kevan James
BBC Radio Solent commentator
A 59-run lead on first innings for Somerset is a healthy one
The feeling is that the wicket will play pretty much as it has been through to day four. It has turned a little, but not nearly as much as has been the case with odd games in the recent past.
Somerset's best chance of victory if the pitch stays a pretty good one, will be to try and score as quickly as possible today.
Image source, Getty Images
Yorkshire 327 & 55-0 v Surrey 362
The pitch at Scarborough isn't providing a lot of seaside fun for bowlers.
Jordan Clark bangs in a short one at the start of a new over and Will Fraine has all the time in the world (not literally) to pull it away over square leg for six to bring up a half-century partnership.
He is looking good again after his first-innings century and is 19 not out, with Adam Lyth on 29, after clipping Clark's final ball away for four.
Image source, Rex FeaturesYorkshire 327 & 38-0 v Surrey 362
Yorkshire clear the first-innings deficit at Scarborough without losing a wicket as Will Fraine flicks Jordan Clark away for four.
There were two boundaries for Adam Lyth in the previous over from Morne Morkel, but the second was lucky as it flew off the edge and into the gap between the slips and gully.
Notts 213, Essex 384-5
Ravi Ashwin has taken his second wicket for his new county, as he removes Ryan ten Doeschate.
Having now completed his 50th over in the Essex first innings on his Notts debut, he joins Samit Patel (twice) as the only bowlers to deliver that many balls in an innings for the county in the 21st Century.
Ashwin currently has figures of 2-127. BBC Radio Nottingham's Dave Bracegirdle also reveals that his two previous appearances in Nottingham brought a combined return of 1-94.
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Lancashire 337, Durham 234-5
Slight injury scare over England paceman Jimmy Anderson at Sedbergh School - just a month away from the first Ashes Test.
He has pulled up in his run-up and, after three attempts to bowl the third ball of the 84th over, he has walked off. Josh Bohannon is completing the over.
Hopefully, just a precautionary measure, wit the Ashes series due to start in a month's time at Edgbaston. The BBC commentary team suspect it might be an Achilles injury, based on the stretching exercises Anderson was trying.
Image source, Getty ImagesJimmy Anderson took his 950th first-class wicket at Sedbergh School yesterday
Lancs also had a slight scare over England opener Keaton Jennings.
He apparently made a visit to Lancashire Royal Infirmary yesterday after injuring a finger trying to field the ball in the slips. But he is back out there this morning.
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Northants 273 & 265-7 v Sussex 106
Ten wickets in the match for Ollie Robinson has he traps Luke Procter lbw for seven.
That's three this morning for 'The Rig' - but his side are the small matter of 432 behind.
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Shades on the sidelines at Taunton as Somerset begin their second innings.
But which style do you prefer? Tom Banton and Dom Bess offer a couple of choices.
Image source, Getty ImagesYorkshire 327 & 18-0 v Surrey 362
After only nine runs from the first seven overs, Yorkshire double their total from the next as Adam Lyth and Will Fraine collect fours off Sam Curran.
Lyth cracks a wide ball from the left-armer away square and Fraine runs one down to third man past the three Surrey slips.
Lancashire 337, Durham 221-5
After no further breakthrough and 31 runs added by Durham this morning, Lancashire take the new ball.
Graham Onions has first use, to no avail.
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Somerset 408 & 5-0 v Hampshire 349
Somerset begin their second innings with a single for Tom Abell.
Partner Azhar Ali wastes no time in opening his account as he forces Kyle Abbott away through the covers for four.
Ollie Robinson - who else - takes the first wicket of the day at Hove, bowling Northamptonshire's Rob Keogh for 21. But the visitors are 244-5, a lead of 411 over Sussex.
Leaders Glamorgan have also made a breakthrough in Cardiff with Billy Root running out nightwatchman Charlie Morris. Worcestershire are 203-6, 246 in arrears.
No joy so far for Derbyshire, with Middlesex progressing to 155-3. Dawid Malan is 44 not out but his side are still 402 behind.
Durham are 222-5 at Sedbergh School against Lancashire, with Liam Trevaskis 32 not out and Nathan Rimmington on 16.
Somerset 408 v Hampshire 349
Somerset lead by 59 on first innings at Taunton after Lewis Gregory picks up the final Hampshire wicket for figures of 2-69.
Mason Crane half-heartedly edges to first slip and then swishes his bat in annoyance at himself. If he'd played the stroke with the same conviction, he might have made contact.
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Yorkshire 327 & 8-0 v Surrey 362
There are many better new-ball pairings on the county circuit than Morne Morkel and Sam Curran, if any, and they have Yorkshire pinned down in the opening overs at Scarborough.
Morkel's latest maiden brings four leg byes, but the home openers have yet to score a run off him with the bat.
Will Fraine does, though, have four to his name after a boundary in Curran's first over.
Kent 585-7 dec, Warwickshire 150-0
Warwickshire's openers resume where they left off at Canterbury as they add the eight runs they needed to reach a 150 partnership.
Will Rhodes is on 74, Dom Sibley on 62.
This is their seventh century partnership together - all of which have come in their last 12 games - and it is their best in the County Championship this season.
Image source, Rex FeaturesWill Rhodes (left) and Dom Sibley had put on 142 by the close of play on Monday night
Their best in the Championship for the Bears was actually against Kent.
That was the 176 they put on at Edgbaston when Warwickshire beat Kent to win the Division Two title in September.
But their overall best stand is their 190 out in Dubai in March, in the annual champion county game for the MCC against Surrey.
Lancashire 337, Durham 208-5
A little morning mizzle in the air again at Sedbergh Shoool but they're off on time today.
And, with the day's first scoring shot, Durham go past 200 to get their first batting point.
Somerset 408 v Hampshire 339-9
Tom Alsop is literally unable to move his feet out there because of his injury.
Somehow he manages to hit Lewis Gregory away through the covers for four, but the next delivery sees him lob a catch to mid-off.
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Somerset 408 v Hampshire 331-8
Somerset want to clean up the Hampshire tail as quickly as possible this morning. Lewis Gregory starts with a maiden to Tom Alsop, who is handicapped by injury, but Mason Crane picks up a couple of runs in the second over from Jamie Overton.
Yorkshire 327 & 0-0 v Surrey 362
Morne Morkel has the ball as Yorkshire begin their second innings at Scarborough.
First order of business for the Tykes, to clear a 35-run deficit.
They haven't managed to reduce that figure yet, though.
It's six dot balls from the big South African to Adam Lyth.
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Notts 213, Essex 346-4
Astonishing. After his seven and a half hours at the crease on days one and two, Nick Browne lasts four more balls on day three, without adding to his overnight 163.
A single to Ravi Bopara off Stuart Broad's first ball of the day, followed by an LBW shout against Browne off the next delivery.
But, three balls later, Broad shouts again and this time he is successful. His second wicket.
New man is Essex skipper Ryan ten Doeschate.
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