Kent really enjoying themselves in suburban London at the moment, with Daniel Bell-Drummond seeing the ball well now adding another 10 runs with a six and a four.

Just a reminder, the Spitfires have won six of their last seven games in T20 Blast.

Somerset manage to tighten it up a little, as Lewis Gregory gives up just six runs from the fourth over - that's about par for a ground which always produces plenty of runs.

Not really been the sniff of a wicket so far: the batsmen trust this pitch and somewhere in the field a certain World Boss is licking his lips....

First six of the game as Daniel Bell-Drummond smashes James Fuller's first ball of the over - Sam Billings adds another maximum with the final delivery.

19 off the over, making up for Kent's slow first couple of overs.

Marcus Trescothick belies his advancing years with an acrobatic stop in the field for Somerset but James Vince is in stand and deliver mode - "disdainful" in the words of BBC Radio Solent's Kevan James - as he hits two fours in succession for Hampshire off Jamie Overton's bowling. Eleven off the over.

On a warm evening in Kent, David Payne joins James Fuller in trying to attacking the Kent batting line-up with the ball.

He concedes just one run in the second over as Gloucestershire are yet to get into their stride.

Solid start for Hampshire, who score six off the first over- all from James Vince's bat - before Michael Carberry gets a look-in off the bowling Sohail Tanvir. Jamie Overton is ready to bowl the next over on a windy late afternoon in Taunton.

Not the best start in the opening over for Gloucestershire's James Fuller, who bowls a wide with his first ball - and then another one just afterwards.

Kent have sent wicketkeeper Sam Billings up the order to opening the batting with Joe Denly out with a side strain.

Image source, Joe Townsend/BBC Sport

You can listen to ball-by-ball coverage of every match in this season's T20 Blast from BBC local radio stations via the BBC Sport website - commentaries are available on desktop, tablet and mobile devices. Just go to the top of this page and click the commentary you wish to hear.

In addition, BBC Radio 5 live sports extra will provide commentary of a selected match each Friday, while you can also follow a live text commentary of every set of Friday fixtures during the group phase.

And if you miss any T20 Blast action, there's a weekly podcast to help you catch up.

At Beckenham, Kent have won the toss and decided to have a bat.

In nine of the last 10 games the Spitfires have played, it has been won by the team batting first... Gloucestershire are unchanged from their win over Essex last time out.

Kent: Bell-Drummond, Ball, Northeast (capt), Billings, Stevens, Cowdrey, Blake, Coles, Riley, Claydon, Haggett

Gloucestershire: Klinger (capt), Marshall, Cockbain, Handscomb, Dent, Taylor, Jones, Howell, Smith, Fuller, Payne

Somerset - who have a promising up and comer by the name of Chris Gayle opening the batting - are unchanged from the XI who lost by three runs to Kent in their last outing. They'll be led out of course by Craig Kieswetter.

Hampshire, who have won the toss and decided to bat first, have made one change, with West Indies star Fidel Edwards coming into the side in place of Jackson Bird.

Somerset: Gayle, Trescothick, Trego, Allenby, Hildreth, Cooper, Gregory, Tanvir, Thomas (capt), Waller, Overton

Hampshire: Carberry, Vince (capt), Adams, Shah, Ervine, Wheater, Smith, Wood, Arafat, Edwards, Briggs

Image source, Getty Images

At Hove, Dawid Malan and Paul Stirling's record opening stand for Middlesex of 187 helped them to 221-2 and a 42 run win over Sussex.

Luke Wright hit 91 off 47 balls to give Sussex hope, before they lost five wickets for just four runs.

Derbyshire's top-drawer opening pair of Hashim Amla and Tillakaratne Dilshan were the difference as they earned a comfortable five-wicket win over Lancashire.

The international duo put on 93 as the Falcons comfortably chased down Lancashire's 127-9.

Elsewhere Hampshire beat Glamorgan by 21 runs in a low scoring encounter at the Swalec Stadium, Worcestershire raced to a six-wicket win over Leicestershire and Birmingham Bears beat Northants by five wickets.

Image source, Getty Images

I promise this will be the last I mention of Chris Gayle...for about 10 minutes...but the big man was the star of the show in week three.

The Jamaican smashed 92 off 59 balls on his Somerset debut to lead his side to a dramatic last-ball win against Essex on Friday, then followed it up with an even more sensational 151 not out albeit in a losing cause against Kent two days later.

Kent lead the early South Group table following their win in Taunton and a 23-run victory over Surrey on Friday night.

Four wickets for Keaton Jennings helped Durham to victory by seven runs as Yorkshire suffered their first T20 Blast setback of the season.

However it wasn't such a happy tale for Paul Collingwood's men on Sunday as they fell to a 15 run defeat at Nottinghamshire.

Image source, Getty Images

As we enter the fourth week of the competition, who would your money have been on to be leading the run-scoring charts?

Luke Wright, Jason Roy, Paul Stirling? The man at the top of the pile is actually Kent captain Sam Northeast.

The 24-year-old who once scored 19 hundreds in a term as a schoolboy, has notched up 330 runs in five innings including 114 off just 58 balls in his side's remarkable three-run victory at Somerset on Sunday.

Chris Gayle is behind him in the table with a mere 243 runs. Okay, the West Indian may have got them in just two innings and struck 21 sixes, but come on Chris time to up your game!

Image source, Getty Images

Among all the excitement in the build-up to tonight's action, we've also had the sad news today that Somerset opener Craig Kieswetter has been forced to retire at the age of 27.

Seen as one of the most explosive batsmen in T20 cricket, the England international was struck in the face by a ball which went through his helmet grille last summer.

Following surgery on a broken nose and damaged eye socket, Kieswetter announced his retirement from the game this morning saying he feels 'mentally he will never again be the player he was.'

He will lead the Somerset side out ahead of their T20 match against Hampshire this evening.

Image source, Getty Images

The conclusion of England's short Test series against New Zealand means a number of counties welcome back their home-grown international players this evening.

Jos Buttler and Joe Root could face off in the Roses match at Headingley, while the Vikings also welcome back Adam Lyth and Gary Ballance.

Ben Stokes will be looking to continue his fine international form for Durham against Derbyshire.

Stuart Broad has been given the green light to line up for Nottinghamshire against his former county Leicestershire.

Worcestershire are also set to be boosted by the return of Moeen Ali who is likely to open the batting for the Rapids in their match at Northants.

Finally Alastair Cook has been named in the Essex squad for their trip to the Oval, but we'll have to wait and see if he's involved in the action.

Who's looking forward to the Roses match then?

Both sides are set to welcome back some of their England stars and there is also a clash of the Australian big-hitters between the Tykes' Glenn Maxwell and Lancashire's James Faulkner, fresh from his maiden century for the Red Rose county in the Championship.

Which player do you feel will have the biggest impact on tonight's match?

Get in touch using #bbccricket on Twitter or on the BBC Sport Facebook page.

Image source, Getty Images

So, what else have we got to look forward to tonight?

With the array of batting talent on show, perhaps there is no better place to start than at Taunton where Somerset take on Hampshire.

While the hosts have the likes of Chris Gayle, Marcus Trescothick and Peter Trego, Hants certainly have men capable of hitting the ball into the River Tone themselves - cue Michael Carberry, James Vince and Sean Ervine.

Elsewhere Nottinghamshire host Leicestershire - fresh from their first County Championship win since 2012, free-scoring Middlesex travel to Cardiff to play Glamorgan and Surrey take on the South Group's bottom side Essex at the Oval.

Here's the full line-up:

Kent v Gloucestershire - Beckenham - 17:30 BST

Somerset v Hampshire - Taunton - 17:30 BST

Glamorgan v Middlesex - Cardiff - 18:30 BST

Northamptonshire v Worcestershire - Northampton - 18:30 BST

Nottinghamshire v Leicestershire - Trent Bridge - 18:30 BST

Surrey v Essex - The Oval - 18:30 BST

Yorkshire v Lancashire - Headingley - 18:30 BST

Derbyshire v Durham - Derby - 19:00 BST

Image source, Getty Images

There will certainly be no love loss when Yorkshire face their old foes Lancashire at a sold-out Headingley this evening.

Roses matches are never short of drama, and that was certainly the case in the match between the two sides at Old Trafford in last year's competition as The Tykes secured a last over win against their oldest rivals.

Aaron Finch was the star of the show that night with 88 off 55 balls, but Yorkshire will have to make do without the injured Australian tonight.

You may be wondering what happened in the return match at Headingley in 2014? I'll let the picture below tell you the rest.

Tonight however, the weather is set fair in Leeds, and we're in for a cracker.

Image source, Getty Images

Well, it's been a quiet start to Chris Gayle's stint with Somerset in the T20 Blast hasn't it?

Image source, @debdavany

The fun-loving Jamaican has not only served up a couple of mouth-watering innings, including an incredible 151 not out off just 62 balls against Kent on Sunday, he's even been for a few pints with the locals.

Image source, Martin Bullock

Gayle's spectacular century, his 15th in T20 cricket, contained 15 sixes the last of which was retrieved from Taunton's River Tone by fan Martin Bullock.

Somerset are back in action against Hampshire - one of eight games this evening.

It's also the Roses match as Yorkshire take on Lancashire at Headingley which we will be hearing more about shortly...

So get your trunks at the ready because we're all set for another swimmingly good night of T20 Blast cricket!

Image source, Getty Images

Commentaries available on this page: (scroll through the live coverage tab to select your game)

Live scorecards available here

Yorkshire v Lancashire - BBC Radio Lancashire, BBC Radio Leeds and 5 live sports extra

Nottinghamshire v Leicestershire - BBC Radio Nottingham and BBC Radio Leicester

Somerset v Hampshire - BBC Radio Solent BBC Somerset/ Bristol

Surrey v Essex - BBC Essex and BBC London 94.9

Northamptonshire v Worcestershire - BBC Hereford and Worcester and BBC Radio Northampton

Glamorgan v Middlesex - BBC Radio Wales and BBC London 94.9

Derbyshire v Durham - BBC Radio Derby

Kent v Gloucestershire - BBC Radio Kent