Division One:

Aigburth: Lancashire v Hampshire 129-8 - Lancashire won toss and elected to bowl

Trent Bridge: Nottinghamshire 176-6 v Yorkshire -Yorkshire won toss and elected to bowl

Edgbaston: Warwickshire 161-3 v Somerset - Somerset won toss and elected to bowl

Division Two:

Chelmsford: Essex 89-4 v Northamptonshire 81 - Northants won toss and elected to bat

Bristol: Gloucestershire 38-2 v Durham 140 - Durham won toss and elected to bat

Kia Oval: Surrey v Glamorgan 238-2 - Glamorgan won toss and elected to bat

Division Three:

Canterbury: Kent v Middlesex 147-9 - Kent won toss and elected to bowl

Hove: Sussex v Derbyshire 244-3 - Derbyshire won toss and elected to bat

Worcester: Worcestershire v Leicestershire 171-7 - Leicestershire won toss and elected to bat

And for detail on all those matches - take a look at our scorecards page.

Two sessions down in all of our Division One matches.

Let's see what the scores look like across the other two matches as well with a couple still playing on in their afternoon sessions...

Joe Clarke's unbeaten half-century has been the bedrock of Nottinghamshire's innings as they try to build an imposing total before their seam bowlers get to work.

But Yorkshire have chipped away at the other end with three wickets and some tight bowling to keep themselves in the game.

However, seasoned Trent Bridge watchers may feel with the green tinge to the pitch, this total could easily put the visitors under the cosh when it's their turn to bat.

Lancashire have kept their foot on the gas after lunch, picking up four more wickets for just 65 runs with wickets for Bailey, Wood, Parkinson and a run-out.

However, the Hampshire tail have been obdurate opponents and are making their hosts work hard to polish them off, even if they are unlikely to pick up any batting points.

Warwickshire reach tea arguably in the best shape of the four title contenders so far today, certainly in terms of runs on the board.

They did lose the wickets of skipper Will Rhodes (60) and Dom Sibley (56) in that afternoon session, but Sam Hain (18 not out) and Matthew Lamb (9 not out) are starting to build a useful partnership for this fourth wicket.

Mason Crane has held Lancashire up for his 66 balls to notch up an unbeaten 14 so far.

But the number nine has previous. Against Yorkshire at the start of this stage of the Championship, Crane held up Yorkshire as a nightwatchman. He made 28 off 197 balls in that innings as Hampshire eventually survived for a draw with nine wickets down.

Dropped catchpublished at 15:07 British Summer Time 21 September 2021

15:07 BST 21 September 2021

Nottinghamshire 163-5 v Yorkshire

A big let-off for Joe Clarke, as he is put down by Adam Lyth at second slip off Ben Coad when on 57.

Some tight bowling from Yorkshire in the last 40 minutes has put the brakes on the home county.

150-up for Warwickshire now, who may well be keeping an eye on proceedings at Aigburth.

Sam Hain came into this match off the back of a king pair against Yorkshire last week, but his square cut for four off Jack Leach takes him into double figures already.

Martin Emmerson
BBC Radio Newcastle at Bristol

An awful showing after lunch saw Durham lose six wickets for 31 runs in 11 overs as Gloucestershire bowled them out for just 140. And this after they chose to bat.

Five of the players threw their wickets away after the break, seemingly unable to deal with the left-arm spin of Zafar Khan and Graeme van Buuren. Khan finished with 5-50, but Van Buuren started the rot when Ned Eckersley pushed him tamely to Chris Dent in the covers on 20.

Although Graham Clark was bowled by a decent ball from Van Buuren, the others just didn't know what to do. Paul Coughlin (9) and Liam Trevaskis (first ball) fell in the same Khan over while sweeping. Matty Potts was caught and bowled by Van Buuren for 4, pushing a simple catch back to him.

And then with the last pair at the crease Ben Raine clipped Khan to point on 16, having first gone towards the bowler, only to retreat in two minds before giving up his wicket.

Van Buuren, a part-time spinner took 3-28.

The 100 is finally up for the visitors at Liverpool.

But coming in the 49th over for the loss of seven wickets tells you how hard going it has been.

If the last three wickets can eke out another 30-40 runs though, this could still give them something with which to bowl.

50 for Dom Sibleypublished at 14:23 British Summer Time 21 September 2021

14:23 BST 21 September 2021

Warwickshire 126-2 v Somerset

Image source, Getty Images

A well-deserved half-century for Dom Sibley at Edgbaston.

He's hit seven fours in his 132-ball stay at the crease so far.

He'll be desperate to keep going here and press the Bears towards batting bonus points.

50 for Joe Clarkepublished at 14:23 British Summer Time 21 September 2021

14:23 BST 21 September 2021

Nottinghamshire 142-4 v Yorkshire

Image source, Getty Images

Joe Clarke brings up a deserved half-century for Nottinghamshire with a glance down to deep backward square for four.

That's his ninth boundary in a 96-ball innings, but the challenge is to go on and surpass his season's best Championship score of 67.

Image source, Rex Features

A first look of the afternoon at what's occurring away from the title race...

Essex are almost there in terms of securing the Division Two honours. After bowling Northamptonshire out for just 81 earlier, they're 37-0 in reply.

Glamorgan are pressing on against Surrey at The Oval with David Lloyd (77 not out) and Joe Cooke (51 not out) taking them to 182-1.

Gloucestershire have reduced Durham to 129-8 at Bristol, spinner Zafar Gohar with 4-46.

In Division Three, leaders Middlesex have moved on to 129-3 against second-placed Kent. Mark Stoneman (pictured above) falling a short while ago for 59 to Darren Stevens.

At Hove, Derbyshire are 189-3 against Sussex thanks to half-centuries from Billy Godleman and Wayne Madsen.

Finally, at New Road Leicestershire are 133-5 against Worcestershire.

Image source, Rex Features

Essex have made short work of Northants' first innings at Chelmsford despite having lost the toss this morning.

The visitors bowled out for just 81 inside 35 overs. Sam Cook takes 5-21 and Jamie Porter 4-31.