It was a great over but Willey ends it with a wide and then a ball too close to leg stump that's flicked for four to long leg.

Andrew Radd
BBC Radio Northampton

That catch for Lewis McManus puts him on 38 for Northamptonshire in T20 cricket, equalling the record, now level with Adam Rossington.

David Willey will take the new ball at the Wilson End.

Banton takes a single to cover that brings Will Smeed onto strike.

He gets a gift first ball as Sanderson loses his line and gets flicked to long leg for four.

A bit of nip out there and a thick inside edge ends the over with a single.

Tidy start.

Andrew Radd
BBC Radio Northampton

A scotch mist here, looking a little hazy over the indoor school.

Ben Sanderson has the new ball at the pavilion end.

And Tom Banton takes strike for Somerset.

Image source, Getty Images

BBC Sounds

If you also love listening to your county play, you can now access our ball-by-ball radio commentary on most smart speakers, as well as through this page.

Simply tell your smart speaker to ask BBC Sounds to play the fixture of your choice and the day of play.

So, for example, today you could say "ask BBC Sounds to play Northants v Somerset".

Enjoy!

After two pretty comfortable wins for the South in the first two quarter-finals, can the North strike back?

Or will it be another all-southern Finals Day?

Surrey will play the winners of this game after they beat Durham at The Oval on Tuesday.

Sussex, who destroyed Lancashire last night, will play Gloucestershire or Warwickshire who meet at Edgbaston tomorrow evening.

Somerset, winners in 2005, endured so many near-misses before finally lifting the trophy again last year.

No team has ever defended the T20 Blast title. Could this be the year?

They weren’t quite as imperious in the group stage as they were last season and missed out on a home tie in the last eight.

But they remain one of the most consistent short-form sides and start favourites here.

Northants enjoyed a golden period a few years back. Champions in 2013, finalists in 2015, then winners again in 2016.

But in the last seven seasons they’ve reached only one quarter-final. So this is their chance to return to the big stage.

They’ve had a great run with veteran Ravi Bopara in their ranks this year. Only for him to get injured in - wait for it - the Cayman Islands T10 competition!

How big a miss will Bopara be tonight?

A cool evening at Wantage Road but thankfully the rain has cleared so we should start on time here.

First blow Northamptonshire as they win the toss and choose to bowl first.

A bit of a green tinge to the wicket.

Image source, BBC Sport

Hello and welcome back for the third T20 Blast quarter-final.

Northamptonshire, the season’s surprise package, are hosting defending champions Somerset.

Who will make it through to Finals Day at Edgbaston?