Fairly tidy start from Max Waller for Somerset until Phil Salt hammers him for two fours off the last couple of balls.

Nice start for Sussex with those two boundaries, first with power over extra cover and then the second whipped away down to long-on off a full toss.

Here we go then! Seconds out, round two!

Sussex pair Phil Salt and Luke Wright stride out to the middle to open the innings for the Sharks.

Somerset in the field led by skipper Lewis Gregory and with ball in hand, it's spinner Max Waller to open the bowling.

Looks like a decent contingent have made the trip up the M5 to cheer on Somerset today.

Our colleague from BBC Points West caught up with a few of them in catching t-shirts earlier...

Smoutie: I’d like to see a Worcester v Somerset final today. Love Moeen and had an Auntie Betty from Worcester. However, it would be good for it to finally be Somerset’s year.

Today will be an emotional one for Somerset batsman Johann Myburgh, who will play his last game - or games - before retirement.

He announced his decision last month in an open letter to supporters, external in which he said: "I have felt so at home at Taunton."

Myburgh has contributed 350 runs to Somerset's T20 Blast campaign this summer, including a brilliant unbeaten 103 off 44 balls against Essex, and a match-winning 54 not out against Hampshire.

Does he have a couple more memorable innings up his sleeve? Cider Boys fans certainly hope so.

Sussex Sharks captain Luke Wright is confident Sussex Sharks can lift their first T20 title since 2009.

Sharks face Somerset in today's second semi-final at Edgbaston and after an eye-catching journey through the South Group and the quarter-finals, Wright says the mood in the squad is buoyant.

Image source, Getty Images

It is 13 long years since Somerset lifted what was then the Twenty20 Cup with victory over Lancashire at The Oval.

But hopes are high that they could become English cricket's short-form kings again on their sixth Finals Day appearance.

They topped their group after a sluggish start, helped by a run of nine wins in 10 games, with New Zealand all-rounder Corey Anderson smashing 460 runs at a strike rate of 173.58.

Anderson missed out in their semi-final against Notts Outlaws, but Lewis Gregory's unbeaten 60 off 24 balls carried them to a total of 209-5 and 5-47 from pace bowler Jamie Overton sealed a 19-run win.

If those three produce performances like that today, they may be filling the trophy with cider instead of champagne in a few hours time.

Image source, Getty Images

Edgbaston, August 2009 - the last time Sussex lifted the T20 trophy.

Their opponents in the final that evening? Somerset of course.

The Sharks were victorious by 63 runs thanks to 59 off 26 balls from opener Dwayne Smith. James Kirtley also did the damage with the ball, taking 3-9.

Luke Wright (pictured above right with Ed Joyce) was part of that victorious side. Can he inspire Sussex By The Sea to another glorious night in Birmingham?

Thanks Josh, top effort steering us through that opening semi-final.

As mentioned, we're only 15 minutes away from the start of the second, so let's build things up for Sussex Sharks against Somerset....

Nicola Coles: Love it that @SomersetCCC, external haven’t been mentioned for the win today by any experts. They are going to take everyone by surprise.

We saw some great batting from Ben Cox, Moeen Ali dismissing Jos Buttler, and a world record for Pat Brown.

It all led to this for the Worcestershire Rapids.

But who will join Worcestershire in the final, Somerset or Sussex?

To take you through the second semi-final, here's Adam Williams.

No three-peat for Alfred the Gorilla as Charlie the Fox and River the Bear dive for the tape....what will the judges decide? It's Charlie the Fox declared the winner.

Image source, Rex

Gloucestershire haven't reached Finals Day since 2007 - but their gorilla mascot Alfred is certainly familiar with Edgbaston.

He's won the mascot race for the past two years and has his sights on a hat-trick in today's fun-for-all-the-family-free-for-all.

Will the others again have to gape at the ape from the rear, or is one of them in the right shape to beat him to the tape? The race is coming right up. We'll let you know the result.

Sussex Sharks have won the toss and will bat first in the second semi-final.

Both teams stick with the same XIs that saw them safely through the quarter-finals.

Lewis Gregory reckons he has "the best bowling attack in the competition" so he won't be too disappointed by Luke Wright's decision.

Perhaps a surprise that England's Craig Overton isn't in the Somerset side, though?

Sussex: Salt, Wright (c), Evans, Rawlins, Wiese, Burgess, Archer, Jordan, Beer, Briggs, Mills.

Somerset: Myburgh, Davies, Trego, Hildreth, Abell, Anderson, Gregory (c), van der Merwe, J Overton, Taylor, Waller.

James Anderson
Lancashire and England fast bowler on BBC Radio 5 live Sports Extra

That partnership between Ben Cox and Ed Barnard was where the game was won and lost.

They played really sensibly and maturely, they built the partnership up and accelerated towards the end and that 19th over was a huge momentum changer in the game and gave them a lot of confidence.

Lancashire never seemed to get going with the bat and never had a solid partnership like Worcestershire had.

Jack Shantry
Ex-Worcestershire all-rounder on BBC Radio 5 live Sports Extra

Image source, PA

You wouldn't know from watching them that Worcestershire are the youngest team in the competition, with nine homegrown players.

They have played really well and Pat Brown was fantastic. But Ben Cox scoring 27 in the 19th over made a huge difference.

Not much time to rest between matches today.

The toss for the second semi-final will be taking place in just a few moments' time.

Zahir Khan takes one run from the final ball, but Worcestershire advance to their first ever T20 Blast final.

Ben Cox's 55 from 34 balls got the Rapids to a challenging total after a mid-order collapse, before Moeen Ali and Patrick Brown combined to take six wickets to leave Lancashire well short of their target.

Zahir Khan swings and misses.