Image source, Rex Features

Wicketkeeper Jonny Tattersall makes his first-class debut for Yorkshire at the Ageas Bowl after scoring 89 against Hampshire in the One-Day Cup semi-final on the same ground on Monday.

This week, the Yorkshire batsmen are working with former Zimbabwe Test player Grant Flower, the current Pakistan batting coach, this week.

"I’ve asked him to come down here and be around us to see if the lads can glean anything from him," director of cricket Martyn Moxon said.

Yorkshire have won the toss and elected to bat first.

Image source, Rex Features

Thanks, Gary. Here's the state of play in Division One...

Worcestershire will resume on 84-5 against Lancashire at New Road, with Darryl Mitchell and Ed Barnard in the middle. Joe Mennie is the leading wicket-taker for the visitors, with 3-21.

Surrey are looking solid at Guilford and will start the afternoon session on 98-1 against Somerset. Arun Harinath was the wicket to fall, lbw to Tom Abell for 48.

Nottinghamshire are 109-2 against Essex at Chelmsford, with captain Chris Nash unbeaten on 48.

Hampshire get their day-night game against Yorkshire under way at 14:00 BST.

Right, I'm off to find my favourite outground.

Ben Pheazey is in the hotseat to take you through the afternoon session.

Matt Smith: Watching the likes of David Gower, Robin Smith and Malcolm Marshall play at the Mays Bounty, Basingstoke was an absolute treat for any cricket fan.

Dave Pashby: Got to be be Scarborough these days, especially the festival. Hull and Chesterfield used to be friendly spots too.

They're under way in the day-night Division Two match at Northants.

Gloucestershire elected to bowl first, so Ricardo Vasconcelos and Ben Duckett are in the middle for the hosts.

Talking of Swansea, the covers are coming off and the umpires will inspect in about 10 minutes.

Fingers crossed for some good news after the entire morning session was washed out.

Jonny: Sadly no longer used but Valentine's Park, Ilford was where I first watched Essex and went every year until moving away. Watching greats like Malcolm Marshall bowling to Allan Border in my local park is a very happy memory...

Aidan Watson: Loved watching Glamorgan v Durham last year in Swansea. Went down to the last over with a lovely setting on the sea front.

Kevin Hand
BBC Radio London

With both sides wanting to bat first, it turned out to be a very good toss to lose at Grace Road as heavy cloud cover rolled in just before the start of play.

Although the pitch lacks pace, the Middlesex bowlers were able to find both swing and seam movement with Tim Murtagh and Steven Finn removing the openers to leave Leicestershire 25-2.

A rain delay meant only 22 overs were possible in the session so the hosts, who also lost Mark Cosgrove to a poor shot after the interruption, will still have a hard ball to face after lunch and they will hope desperately that the grey skies stay away, having seen the sun break out for the first time just as the last ball of the session was bowled.

Adrian Harms
Sports reporter, BBC Sussex

Durham put Sussex in on a grey morning and soon had them in trouble as Luke Wells, who has scored a number of centuries against them, was caught at second slip for eight by Tom Latham, off the bowling of Matt Salisbury.

That was in the fourth over but Durham didn’t taste success with the ball again in the session, thanks to a first half-century from 19-year-old left-hander Tom Haines and one from Phil Salt.

They have put on 121 runs so far for the second wicket. Salt looks set to break his personal best which was 72 in a match at Chester-le-Street last September. He has 59 and Haines 62.

Image source, BBC Sport

Mark Church
BBC Radio London commentator

A cracking morning between the top two. No toss as Somerset decided to bowl at Guildford, but Arun Harinath and Rory Burns played very calmly against the new ball.

Harinath looked destined for a well deserved fifty but he was LBW to Tom Abell two runs short of that landmark.

Burns is once again leading from the top andSurrey will be happy with their morning's work.

Division One:

Worcestershire 84-5 v Lancashire at New Road

Surrey 98-1 v Somerset at Guildford

Nottinghamshire 109-2 v Essex at Chelmsford

Hampshire v Yorkshire - Play due to start at 14:00 BST

Division Two:

Sussex 130-1 v Durham at Arundel

Leicestershire 84-3 v Middlesex at Grace Road

Kent 104-4 v Warwickshire at Tunbridge Wells

Glamorgan v Derbyshire - Match delayed by rain. Pitch inspection at 13:40 BST

Northamptonshire v Gloucestershire - Play due to start at 13:30 BST

Lancashire are very much on top in Worcester after the seamers ran through Worcestershire's top order.

Joe Mennie was the pick with three wickets.

Daryl Mitchell has battled valiantly for 25, but the former skipper has plenty of work to do in the afternoon session.

Image source, Rex Features

Essex will probably be relived to get into the pavilion following Ross Taylor and Chris Nash's stand of 49 in 10.3 overs before lunch.

But the county champions did get a couple of wickets - Jake Libby and Samit Patel.

Just about even stevens.

On balance it's probably been Surrey's morning, but that late wicket of Arun Harinath gave the visitors a late boost.

Rory Burns has nudged and nurdled his way to 31, but he's in prime touch at the moment.

Another cracker...

I got a bit distracted by all your great outground pics, but briefly returning to the cricket and Notts are racking up the runs before lunch.

Ross Taylor is the chief architect - he's raced to 24 off 27 balls. Chris Nash is six away from a half-century. A pretty even morning session at Chelmsford I'd say.

BBC Sport's resident Hampshire fan Mark Mitchener has put in a bid for Dean Park in Bournemouth.

That's one of the few outgrounds I've been to and can confirm it is indeed a beauty...

You guys are sending in some fabulous outgrounds...