Follow updates from day one of nine County Championship matches
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Group 1: Derbys v Worcs, Essex v Durham, Notts v Warks
Group 2: Hants v Middlesex, Somerset v Glos, Surrey v Leics
Group 3: Glamorgan v Sussex, Kent v Yorks, Lancs v Northants
Lancashire 244-8 v Northamptonshire
Ooof, harsh on Lancashire batsman Luke Wood who pulls a short one onto his own stumps.
But it's definitely a deserved first wicket of the match for Ben Sanderson who's bowled well all day.
We've got fewer than eight overs remaining at Old Trafford now.
Nottinghamshire 246-8 v Warwickshire
Unsurprisingly, Warwickshire have taken the new ball.
They've got to find a way of removing Liam Patterson-White who has reached a career-best 60 not out.
Somerset 300-8 v Gloucestershire
When Steven Davies fell at 264-8 and with the second new ball only four overs old getting the third batting point looked a tricky ask.
But Somerset have got there with a bit of room to spare, with Marchant de Lange's 21-ball 30 steering them beyond 300.
Kent v Yorkshire 305-8
Image source, Getty ImagesYorkshire are now down to eight as Darren Stevens has Jordan Thompson nicking behind with keeper Ollie Robinson taking his fifth catch on the day.
David Willey (1 not out) and Steven Patterson (6 not out) have just sneaked Yorkshire past the 300 mark, collecting a third batting point.
We've got 13 overs left in Kent.
Lancashire 236-6 v Northamptonshire
Fewer than 11 overs remain at Old Trafford, credit to Northamptonshire we've raced along in Manchester today.
Luke Wood is farming the strike at the moment for the hosts, he's on 22 not out.
Tom Bailey (nine) is the man at the other end.
Surrey v Leicestershire 151-2
They're back out once more at The Oval with 26 overs remaining in the day.
Going at Test match over-rates, they should finish about 19:30 BST!
Kent v Yorkshire 292-7
Has 44-year-old Darren Stevens rescued Kent yet again?
The all-rounder traps England's Dom Bess for 36, breaking up a 50-run partnership.
David Willey's the new man in. Will he play defensive or start swinging?
Essex 96 v Durham 98-2
Durham have already reached Essex's first-innings score although they have just lost another wicket with Will Young caught off the bowling of Simon Harmer.
Durham skipper Scott Borthwick has been brilliant batting at number three so far. He's already reached 65 off just 75 deliveries. He's only 31 short of Essex's total.
Glamorgan 285 v Sussex 0-0
Here we go. A change of innings and Sussex openers Aaron Thomason and Tom Haines walk to the crease.
Around 23 overs left in the day at Cardiff I make it.
Somerset 274-8 v Gloucestershire
Anthony Gibson
BBC Radio Somerset
Batting looking much more difficult since tea, with three Somerset wickets going down, including those of Craig Overton, who made a measured 54, and Steven Davies, who chopped a ball from David Payne onto his stumps, having contributed a hugely valuable 87.
New ball doing more than the old one in the hands of Payne and the ever-effective Ryan Higgins.
And as the Bears struggle to get their final two wickets, Warwickshire and England bowler Chris Woakes has just removed Jos Buttler in the IPL.
You can listen to coverage of Rajasthan Royals chasing 148 against Delhi Capitals right here.
Nottinghamshire 235-8 v Warwickshire
Nottinghamshire's tail is wagging as Liam Patterson-White reaches only his second first-class 50.
It's been slow going at times but the hosts are starting to build on their early patience.
Derbyshire 301-4 v Worcestershire
It's now 300 up for Derbyshire as Matthew Critchley continues his fine form on 89 not out.
Harvey Hosein has been a brilliant supporting act on 40 not out as the pair continue to build their fifth-wicket partnership which now stands at 84.
Worcestershire need wickets and they need them fast.
Somerset 268-8 v Gloucestershire
The key wicket!
Steven Davies is bowled by David Payne for 87 and Somerset will do well to snaffle that third batting point from here.
And that's that. Michael Hogan is stumped by Ben Brown off the bowling of Jack Carson.
Glamorgan number five Kiran Carlson finishes with a superb 127 not out.
There's about 20 overs still left in the day.
Surrey v Leicestershire 151-2
They're off for bad light at The Oval for the third time today.
Since our last update, Jordan Clark had Harry Dearden caught behind by England's Ben Foakes for 14.
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Glamorgan 285-9 v Sussex
Glamorgan are now nine down as Dan Douthwaite (36) Timm van der Gugten (5) and James Weighell (0) all go in quick succession.
Kiran Carlson remains at the crease on 127, shepherding the strike with number 11 Michael Hogan at the other end.
Hampshire 225-7 v Middlesex
Image source, Getty ImagesMartin Andersson saw off James Vince earlier in the innings and now he's got rid of Sam Northeast too.
Northeast was going along really nice, reaching 63 off 111 deliveries, but his dismissal has left Hampshire 225-7.
Essex 96 v Durham 54-1
The 50 comes up for Durham and they're now just 42 runs behind Essex's first innings total with nine wickets in hand.
I'm starting to think batting on this Chelmsford pitch isn't as difficult as Essex made it seem. Will Young (20) and Scott Borthwick (25) have looked unfazed so far.
Lancashire 212-6 v Northamptonshire
Speaking of quick wickets, Simon Kerrigan has just removed Dane Vilas (26) and Rob Jones (13) in consecutive overs.
It's well deserved for Kerrigan, who has bowled a mammoth 25 overs today.
Two new men are at the crease and Northamptonshire have brought the field in to ramp up the pressure.