All-Bangladesh opening attack from Kent to start the afternoon session.

Hasan Mahmud going for just one run off Martin Andersson as his figures read 2-16 off nine impressive overs.

Nathan Gilchrist may not have played with Josh Thomas at Kings College, Somerset or Leicestershire before today, but the controversial last-minute loan signing (signed on the very last day legal - 8 September) gifts Josh Thomas and Somerset nine runs from the opening over.

Four with a boundary off Thomas' blade, five in extras.

James Sales comes in with his slingy action and Adam Hose drives square for four runs. He is 13 not out and Jake Libby has 20. Their task is to see Worcestershire through to the delayed 13:30 lunch interval.

Scott Currie has the ball as he runs into the leading run-scorer in Division One, Joe Clarke.

He lunched on 29 not out and he plays and misses at a good one from Currie.

His wicket is the prized one for the Hants bowlers.

Khaled Ahmed takes the first over of the afternoon session to Luis Reece.

He starts with a maiden.

We are going to see some action at Sophia Gardens after the entire morning session was washed out.

Glamorgan skipper Kiran Carlson has opted to bat first after winning the toss and they give a first-class debut to 19-year-old Jack Hope-Bell, who hit a century against Sussex at Neath in the One-Day Cup in July.

Unsurprisingly, third-placed Warwickshire retain the Xi which dismantled Hampshire by an innings and 129 runs in the previous round.

Play will begin shortly.

Ben Mike and Alex Green join Nathan Gilchrist in coming in for the Foxes for Josh Davey, Tom Scriven and Ian Holland who apparently all got injured at Trent Bridge last Saturday.

Somerset saw the pitch and brought Jake Ball in for Lewis Goldsworthy, but will not get to bowl in these overcast conditions.

Nathan Gilchrist does to his old side, representing his fourth country, he has previous for doing well in a Kent shirt in September v Somerset, but today, on loan from Warwickshire takes the first ball against a man who was to young to be his teammate, Josh Thomas.

Thomas of course, as well as Lewis Goldsworthy did play on loan here last summer though.

The players are returning to the field at Old Trafford after lunch.

That brief shower has not delayed the restart and Gloucestershire batters Ollie Price and Joe Phillips are ready to go again.

We have a possible 73 more overs today.

This season has seen substitutes being used regularly in the County Championship for the first time.

Some have been highly contentious - others have hardly been noticed.

But what exactly are the rules covering the use of subs?

Click here to read a helpful article by Jonty Colman which explains it all.

Martin Emmerson
BBC Radio Newcastle

There were nine minutes to go to lunch when I noted the importance of Durham needing to reach the break without losing another wicket.

They were 76-2 at that point but by the time the players headed off for their sarnies, Durham were 80-4.

Indian batsman Mayank Agarwal couldn't get bat on ball and was finding the conditions really tough.

His frustration was there for all to see and he finally edged his 25th delivery, from Sebastian Morgan, to keeper Harry Duke. He still hadn't got a run!

Graham Clark, who returned to the side this week having been left out at Northants, then hit his first ball for four. But moments later he was caught in the slips on the same score.

It was a bad over from a Durham point of view and a great one for Middlesex and Morgan.

There's is quite a bit of green on the track and it's doing a bit. It was a good toss to win for the visitors.

Leicestershire have won the toss and asked Division One leaders Somerset to bat first at Grace Road.

Stevie Eskinazi is leading the Foxes in the absence of injured skipper Ian Holland and Nathan Gilchirst makes his debut against one of his former sides.

Somerset have Jake Ball in their XI as an extra pace option, replacing all-rounder Lewis Goldsworthy.

They have taken an early lunch at Sophia Gardens and the umpires are currently carrying out their second inspection.

Let's hope for some good news very soon.

Image source, BBC Sport

Division One

Glamorgan v Warwickshire - no play before lunch

Leicestershire v Somerset - no play before lunch

Nottinghamshire 106-4 v Hampshire

Sussex v Surrey - no play before lunch

Yorkshire 50-0 v Essex

Division Two

Derbyshire 89-4 v Kent

Durham 80-4 v Middlesex

Lancashire v Gloucestershire 11-1

Worcestershire 20-2 v Northamptonshire - play still in progress after delayed start

Worcestershire have lost their second wicket at New Road with Rehaan Edavalath bowled by Northants skipper Luke Procter for four. Excellent delivery which just did enough to beat his defensive bat and hit off stump.

Having been put in by the visitors, the Pears are 20-2 in the 11th over.

We had expected lunch at 12.50 here but they're off 10 minutes early.

A good effort from the Tykes in tough conditions.

Adam Lyth is unbeaten on 23 with Will Luxton on 18.

Just the one chance, albeit a very tough one at first slip when Lyth edged low to Paul Walter off Jamie Porter.

Lots of Middlesex fans will no doubt be impressed by Naavya's progress this season.

For younger readers, the 'World XI' comment would be a reference to Sir Richard Hadlee - and he certainly knew a thing or three about bowling at Trent Bridge. #alltimegreat

Change of bowling at the Kirkstall Lane End. Zaman Akhter is on for Jamie Porter.

He's wide outside off stump and Adam Lyth leaves the ball.

A better line thereafter from Akhter and Lyth defends into the off side.

Maiden over.

If no further poor weather then play will start for the first session of the match as the other games resume their second session at 1.10pm.

Shane Snater gets a bit of lift outside the off stump but Will Luxton safely jabs the ball down into the off side.

A bit of width and Luxton drives a full ball with a flowing bat through cover for four runs.

Snater fields one off his bowling and shies at the stumps but Luxton is in his crease.

The sixth ball is driven via a thick inside edge to deep mid wicket for four - and that's a Yorkshire 50 in 12 overs.

After losing Dan Lategan to the second ball of the match following a delayed start, Worcestershire are having to fight hard to avoid further damage against Northamptonshire.

They are 14-1 in the eighth over, with Jake Libby 10 not out and Rehaan Edavalath on four.