Tom Lammonby might feel hard done by having got two wickets in an over before lunch, as he is replaced by Jake Ball and Miggy Pretorius to do the opening bowling shifts post-lunch.

A quiet period is just what Essex want here having lost the first session due to those two late strikes.

Sussex turn back to Fynn Hudson-Prentice and Ollie Robinson to resume after lunch with seam-bowling that was so effective in the first session.

Beau Webster was surprisingly slow getting going, but unleashed a little off the two spinners just before the interval.

Glamorgan's Zain ul Hassan gets us under way again at Trent Bridge with two runs from the first over after lunch.

Jack Haynes (25*) and Liam Patterson-White (1*) need to stick about for a while for Notts in this second session you feel.

The biggest partnership for the hosts so far has been just 36 between Joe Clarke and Haynes.

50 for Bohannonpublished at 13:45 BST 10 April

13:45 BST 10 April

Lancs 98-2 v Derbys

It has taken 93 deliveries for Josh Bohannon to get to the half century but he is there with a nick just past third slip off Mo Abbas which races to the boundary rope.

And he is swiftly on to 56 with another through the same gap.

Lunches have been consumed and players are ambling back onto the field.

Let's see what the middle session can conjure up for us!

Rob Phillips
BBC Wales Cricket Correspondent

Newly-promoted Glamorgan have shown no inferiority complex on day one of their visit to the champions.

Captain Kiran Carlson has seen his decision to insert the hosts pay off early on as Timm van der Gugten’s nagging line and length has been rewarded with three wickets.

He started in style removing Haseeb Hameed, first ball of the day, and prospered to claim England’s Ben Duckett and dangerous wicketkeeper-batter Kyle Verreynne.

Nottinghamshire have gone strong for this one and included Josh Tongue, while their batters have gone along at more than four-an-over.

But Glamorgan will be happy to claim a first bowling point before lunch.

Anthony Gibson
BBC Radio Somerset

Two wickets each for Jake Ball and Tom Lammonby, in both cases in the course of a single over, have more than vindicated the decision of Craig Overton - once again captaining in the absence through injury of Lewis Gregory - to ask Essex to bat when he won the toss.

Tom Kohler-Cadmore damaged his left hand in taking a slip catch to dismiss Wiaan Mulder - he went off straight away and hasn't re-appeared.

We wait to see if an injury substitute is required.

Division One

Chelmsford: Essex 80-4 v Somerset

Trent Bridge: Nottinghamshire 101-5 v Glamorgan

The Oval: Surrey 110-2 v Leicestershire

Hove: Sussex v Warwickshire 69-3

Headingley: Yorkshire v Hampshire 82-2

Division Two

Bristol: Gloucestershire v Durham 143-0

Canterbury: Kent v Northamptonshire 124-0

Old Trafford: Lancashire 88-2 v Derbyshire

Lord's: Middlesex v Worcestershire 84-5

A fine morning's work for Middlesex after deciding to bowl first at Lord's. Half of the Worcestershire batters are back in the hutch as they lunch on 84-5.

Dan Lategan top scored with 31, but two wickets apiece from the dependable Ryan Higgins and Naavya Sharma have got the hosts on top and they will hope to finish the job in the second session.

That is all in contrast to Canterbury where Kent have toiled and Northants cruised to 125-0 with Ricardo Vasconcelos on 73 and Luke Procter 45 not out.

George Hill's dismissal of Tom Prest just before lunch has given the hosts a timely boost just when Hampshire were on top and it is even stevens going into the break.

Two wickets after putting in the visitors (Joe Weatherley was the first chipped out by Jhye Richardson) might not sound much but there does not look a great deal in this pitch at the moment.

Nick Gubbins has been joined at the crease by Jake Lehmann and we are set for an intriguing middle session.

Image source, Shutterstock

Josh Bohannon walks off for lunch three short of his half century and in company with Marcus Harris (32), the pair having put on 79 for the third wicket after a couple of new ball breakthroughs for Derbyshire.

In all, a pretty even morning which both sides can be reasonably happy with.

Derbys will have been delighted to get the openers back in the hutch inside five overs but have struggled to trouble this pair since.

Admittedly, Bohannon rode his luck getting a life on 28 when Martin Andersson spilled a sharp chance at third slip off the bowling of Zak Chappell.

Since then the Lancashire duo have built a steady partnership. Batting in bright sunshine at Old Trafford should be, in theory, easier this afternoon.

In more than a decade of covering the County Championship I can never remember a lower-scoring first session where no play was lost to the weather.

Sussex's four seamers have bowled immaculately and Warwickshire have had to bide their time waiting for bad balls that have been so few and far between!

Even Jack Carson and James Coles got through a couple of overs each before the interval, the lattter ending with a big lbw appeal turned down on Beau Webster, just down the legside.

Coles' 17 runs conceded off three overs is the most expensive of an otherwise very stifling set of bowling figures!

Alex Lees picks up the single he needs from the fourth ball of the final over before lunch to bring up his half-century.

The skipper goes to lunch on 50, with junior partner Ben McKinney 84 off 88 balls as he heads for his lunch.

The partnership is seven shy of 150 as they rattle along at 4.76 runs an over with Gloucestershire having tried six bowlers without success.

And all this after asking the north east county to bat first.

Image source, Getty Images

A decent first session of cricket at The Oval and Surrey will be fairly content with that.

Dom Sibley was trapped for just four by Josh Hull early doors and Rory Burns looked to be in good nick before he spooned Tom Scriven to Ian Holland at mid-wicket for 24.

But Jamie Smith (44*) and Ollie Pope (31*) are ticking along nicely and have put on 68 for the third wicket as 42-2 has turned into 110-2.

Leicestershire will need at least wicket or two after lunch to stop this from getting away from them today.

Alfie Ogborne was surprisingly not picked for this game, but maybe that was a stroke of genius from Jason Kerr, backing their number three bat and left-arm swing bowler, healthier than how he felt last Sunday when he chose to drop to number four in the second innings with Notts.

Tom Lammonby ousted a stoic Dean Elgar who again got runs against his old club, but he will be fuming to have given it away, caught in the deep for 41.

Somerset bowled brilliantly with little reward beforehand anyway, Jake Ball probably with his best opening spell in a Somerset shirt.

The early leaders in big trouble at lunch with no Tom Westley to save them in this match either.

Image source, Getty Images

The morning could not have started better for Glamorgan, with Timm van der Gugten bowling Haseeb Hameed with the first ball of the innings.

And it's continued in the same vein for the visitors, who have enjoyed an excellent first session.

Hameed's opening partner Ben Slater was also dismissed without troubling the scorers.

Ben Duckett, Joe Clarke and Kyle Verreynne all made starts before falling and the defending champions are five down with plenty of work to do after lunch.

Timm van der Gugten is running in for the final over of the session.