This has been completely Hampshire's session.

They've batted the whole way through with Liam Dawson and James Vince putting Hampshire in a really strong position here.

Image source, Rex Features

First innings 5-fer fan Kasey Aldridge is at last turned to in the 23rd over.

He bowled really well at the Oval in that fourth day T19 v Surrey, then struggled at Kidderminster so thus fell out of favour for a few weeks, carrying drinks into the T20 Blast as a substitute gun fielder too.

(Josh Davey is taking his turn to run the drinks and ice pops today!)

Just two off Aldridge's first set.

Derbyshire have done well to keep Middlesex in check during the afternoon session following Sam Robson's flying start before lunch.

The home side have added 86 from 36 overs, but are still in a strong position, 245 runs ahead.

Robson played a loose shot and was caught off Zak Chappell for 67, and Max Holden fell to Luis Reece for 45.

Kent are obviously in survival mode, but they have to pick up runs as well, so Ben Compton is not doing to miss out when Nathan Lyon is short on middle and leg.

Four welcome runs as the total ticks past 50 and he advances to 28.

I don't think Durham supporters should get nervous just yet but it (Ollie Robinson's dismissal) does keep things very interesting.

That's his first century of the season and this innings is putting Hampshire in a great position to try to force a win here at Edgbaston.

He reaches the landmark in 125 balls by driving Will Rhodes through cover for two.

Five fours and three sixes struck in a superb exhibition of controlled aggression.

Who doesn't love a bit of tail end flair?

This is a beautifully timed lofted drive that guides the ball high over the head of Dom Bess and three rows back into the stands.

George Hill come on at the other end to replace Conor McKerr and his first ball in the spell is glanced by Akhter through square leg on the front foot for four.

He does have to withdraw his bat to a rising ball back of a length after that but survives the over.

First job done by Leicestershire, see it through to tea without losing any wickets.

Rishi Patel, who made a 41-ball century in the T20 Blast last Friday, hits three fours in the final over of the session, bowled by Sean Hunt and is 16 not out.

Their target is 464 after Sussex declared on 296-6, with nightwatcher Hunt making 65 and Tom Alsop 81 not out.

Jack Leach has started to get a little purchase and turn in recent overs, the ball only 21 overs old now remember.

His eighth over on the trot coming right up, only one maiden in there thus far though.

(Somerset only have three maidens out of the first 21 overs).

Three runs per over currently for Notts, no rush, but they look comfortable enough.

Kashif Ali appears to be growing in confidence at New Road and deftly nudges James Taylor wide of slip for four in the final over of the afternoon session.

Ali is 46 not out at tea, and Gareth Roderick has 40, the pair having come together when Jake Libby was bowled by Jordan Clark for 28, with the score on 33.

You would say that Surrey are still big favourites to win this game - Worcestershire still trail by 163 - but hopes of getting the job done with a day to spare now appear remote.

Full toss from Will Rhodes and Liam Dawson punches that ball through mid off for four runs.

Nine runs come off that over and a sixth wicket feels a distant possibility at the moment.

Conor McKerr is ticking here.

He bangs a ball in short to Zaman Akhter, who taps the ball to long leg for a couple of runs.

He's round the wicket for the last ball, banged in short and pushed round the corner for one.

Craig Overton has a slip and a gully in for Migael Pretorius, but the ball goes between the skipper and Kasey Aldridge off Ben Slater's outside edge for four.

19 overs without even really a sniff of a breakthrough.

A premeditated shot from Liam Dawson, who is forward to Will Rhodes to fetch an off stump ball to fine leg for four.

Seven runs off the over in total.

That is so close.

Past the outside edge of Joey Evison's bat, but it does not hit it and neither does it hit the stumps.

Lovely bowling from Nathan Lyon - excellent stuff from the off-spinner.

A lovely drive from Beau Webster through extra cover off spinner Dom Bess for four.

He's not a defensive player by nature but he blocks out the over nonetheless.

40 overs remain today as the Tykes strive for a three-day win.

David Bedingham lobbed it up to the Essex captain Tom Westley at mid-off.

So Essex have got their wicket and it's just what they needed but Durham are still well in control and well in command of this game.

Buzzers.

Five runs.

Haseeb Hameed again with good running, pushing a single and Andy Umeed's arm gives him a bonus four to the short side for it.

Fortunately for James Rew and Andy Umeed, it is not in Jack Leach's nature to get angry and shout and gesticulate as Rashid Khan famously did in the World Cup earlier today.