The first over from Liam Patterson-White is greeted with a superb reverse sweep from Jason Roy.

That takes the ex-England opener to 35.

And it's back-to-back boundaries for Roy as he does exactly the same off the next delivery.

The target is under 100 and it's a third successive four as Roy squares cuts him.

Surrey are big favourites now.

Logan van Beek to bowl the ninth.

Yorkshire have three spinners remember, but the seamers are doing the damage so Jonny Bairstow cycles through them still.

Essex need a further 128 runs from nine overs.

The required rate is more than 14 per over.

50 up for Surreypublished at 7 overs

7 overs

Notts 163-6 v Surrey 53-0

A fine stroke from Jason Roy as he smokes one through the covers off Olly Stone to bring up the half-century partnership.

There are no major risks from the rest of the over as Surrey accumulate three more singles.

Postpublished at 7.5 overs

7.5 overs

Somerset 38-4 v Yorkshire 161-9

Lewis Goldsworthy is clocked in the head off AJ Tye, so is tended to by Laura Holmes the Somerset physio.

We are waiting for a new helmet to come out.

He is ok to continue but Somerset may benefit from this breather to take stock after a whirlwind 40 minutes with the ball from Yorkshire.

Nine runs from a James Fuller over.

It is very quiet in the ground - do the crowd think this is done?

Essex need 133 to win off 10 overs. Unlikely.

Interesting start from Gloucestershire as they go pace off straight away.

It's a tidy start from Graeme van Buuren who concedes just four singles.

But facing a modest target Northants opening batters Ricardo Vasconcelos and Chris Lynn can afford to be patient.

Kevan James
BBC Radio Solent commentator

Essex are actually ahead of Hampshire at this stage.

Hampshire at 62, they were 77 at the halfway stage after 10 but Hampshire did kick on with 134 off the second 10 overs.

The last over of the powerplay is bowled by Mohammad Amir and he uses a mix of slower balls to keep the batters guessing.

However, Jason Roy and Laurie Evans are reading the situation nicely.

And Evans turns the over in Surrey's favour as he guides the final ball down to deep backward square for four.

Notts were 34-2 in comparison at the end of their first six overs.

Only four runs from Andrew Neal's second over.

Just not enough for Essex who have found the Utilita Bowl a tough place for the second time this season.

Hampshire were 62-1 at the same stage by the way.

Often shunted down to allow the bigger-hitters to come in, Lewis Goldsworthy gets a rare chance at six today.

A delightful pull off Matt Revis bisects the legside sweepers for four.

Tom Kohler-Cadmore has been out of form since his Championship injury at Chelmsford, he is being restrained so far to try and get himself in too.

Jonathan Doidge
BBC Radio Leeds cricket commentator

Will Smeed couldn't have chipped it to Moeen Ali any better if he tried.

Image source, Getty Images

The required rate for Essex is 12 runs per over.

Hampshire might be thinking about their hotel reservation for the weekend unless we are going to see something pretty spectacular.

George Linde is a bit short and Laurie Evans drills it through the offside for four.

Jason Roy then makes room to work one through the offside for four, excellent use of the feet and hands with that one.

Notts could do with a wicket.

Well that was not on many people's bingo cards.

Super start from the home side defending what seemed like a below par 162 in this scorching heatwave.

The Yorkshire bowlers are getting movement and Somerset are not crashing to the boundary as they so often do back at home or at South Group grounds.

Image source, Getty Images

Some improvising at the end of the innings from James Bracey at least got Gloucestershire beyond 150, though not by much.

They looked like posting a much higher total when Ben Charlesworth hit a series of fours and sixes off David Willey and George Scrimshaw on his way to a career best 68.

But, apart from James Taylor, no other batter was able to support Charlesworth and the second half of the innings was a struggle.

Willey and Ben Sanderson had got off to a great start for Northants. They bowled all the powerplay overs between them and reduced the away side to 20-3 after four overs.

Sanderson took two wickets in the final over to finish with 4-20.

Gloucestershire did defend 121 right at the start of the competition. But that was at Bristol and, although there does appear to be some variable pace on this pitch, it'll be a surprise if they win from here.

A touch of class from Laurie Evans as he guides one past the wicketkeeper for four deliberately.

And Jason Roy ends the over with a good shot on the air that dissects mid-off and mid-on and gets to the rope.

A costly over of 12 from Olly Stone.

Andrew Neal's over ends with another boundary.

Essex have taken 31 runs from the past three overs.

James Fuller is brought on by James Vince.