Leics all out for just 123 in 19.2 overs
Glamorgan seamer Meschede takes 3-17
Colin Ingram scores half-century in just 38 balls for hosts
Glamorgan ease home in 13.4 overs
Rudolph 4, Ingram 10
Colin Ingram finally breaks the shackles with a powerful sweep to the boundary off Aadil Ali.
The South African then dances down the track and launches the spinner over cover for four.
Much better over for Glamorgan - 10 from it.
Rudolph 3, Ingram 1
It's really edgy out there.
Jacques Rudolph pops a couple up in the air off Clint McKay but they fall short of the fielders.
The batsmen are struggling to time anything.
Rudolph 2, Ingram 1
Leicestershire off-spinner Aadil Ali is first up from the other end.
He keeps it tight and just three singles come from his opening set of six.
Maybe this pitch isn't quite as easy to bat on as we first thought?
Glamorgan 5-1 (1 over)
James Taylor
Ex-England batsman on BBC Radio 5 live sports extra
"We said about setting the tone - Clint McKay is the leader of the ship and he's got the wicket Leicestershire desperately needed to get this ship moving forward.
"A decent catch there on the ring to get them a vitally important breakthrough."
Image source, Getty Images
Glamorgan 5-1
That's pretty brainless cricket from Aneurin Donald.
Glamorgan just need to knock these runs off, but Donald comes out swinging and smacks Clint McKay straight to Colin Ackermann at mid off.
Colin Ingram comes in at three.
Thanks Adam.
Aneurin Donald and Jacques Rudolph will set about chasing down this modest target of 124 for Glamorgan.
Clint McKay has the new ball for Leicestershire.
Leicestershire 123 v Glamorgan
Right, Leicestershire's bowlers are out there completing their warm-ups and looking pretty determined to make amends for their failure with the bat.
That means time for me to stop gassing on and step aside for Gary Smee to take you through this Glamorgan run-chase...
While we wait for the second half of this game, just chance to bring you up to date with events elsewhere today.....
In the women's Super League, holders Southern Vipers and Surrey Stars made sure they would be at their respective Finals Day on 1 September.
Read how Charlotte Edwards and Nat Sciver's teams secured big wins over Lancashire Thunder and Western Storm earlier....
Holders Southern Vipers and Surrey Stars book their places at the women's Super League Finals Day following victories.
Read MoreLeicestershire 123 v Glamorgan
You won't see many better deliveries all season than this absolute rip-snorter from Marchant de Lange.
Cameron Delport was the first wicket of the night to fall as he was beaten all ends up by a pretty special yorker....
Leicestershire 123 v Glamorgan
As mentioned, Leicestershire were looking strong after winning the toss and electing to bat first.
Luke Ronchi went off like a train and smashed the first six of the game.
But, his maximum was no challenge for a silver-haired fan, who celebrated in the crowd after making a handsome catch....
As James Taylor says, great display by the Glamorgan bowling unit there. Three different bowlers delivered a dozen dot balls each in their four-over spells.
Leicestershire got off to a flier, but they had little direction or plan once the powerplay overs were done.
Leicestershire 123 (19.2 overs)
James Taylor
Ex-England batsman on BBC Radio 5 live sports extra
Glamorgan have been excellent like a well-oiled machine.
They were clinical in the outfield, took good catches and good run outs.
It was a very disciplined all-round performance. They took wickets at the right time and didn't let Leicestershire get any momentum.
Leicestershire 123
There you go - that's your lot for this Leicestershire innings!
Graham Wagg finds away through a big wind up and swing from Gavin Griffifths and he rearranges his stumps in the process.
The Foxes are all out for just 123 in this quarter-final and the hosts will fancy their chances of making the 124 required to reach Finals Day for the first time since 2004.
Gavin Griffifths wickets hit by Graham Wagg
Parkinson 8, Griffifths 11
First boundary for 57 balls was that six from Gavin Griffifths.
Maybe just maybe something for Leicestershire to bowl at here as Graham Wagg takes the final over for Glamorgan.
Griffifths 10, Parkinson 8
Hogan knows best. Michael Hogan - in this scenario rather than his "what you gonna do brother?" namesake Hulk from yesteryear of WWE - as he comes in to bowl his fourth over.
But, I don't think he saw a big pulled six from number 11 Gavin Griffifths coming which takes the Foxes beyond 120!
Parkinson 6, Griffifths 3
Graham Wagg - the wily campaigner - ambles in but rather sloppily delivers a couple of wides down the legside to give Leicestershire a couple of freebie runs.
Numbers 10 and 11 here for the Foxes just stealing a few more runs which, you never know, might make a difference later.
De Lange 4-0-23-2
Marchant de Lange continues from the River Taff End to finish off his four overs and he goes hunting his third wicket and the final one of this Leicestershire dig.
Parkinson and Griffiths eek out a few singles to tick things over a touch. Three runs off it. De Lange also delivers a dozen dot balls from his spell.
Parkinson 1, Griffiths 0
Still four overs to go in this Leicestershire innings and the last pair have been left with a lot to do to make this total even remotely respectable....
James Taylor
Ex-England batsman on BBC Radio 5 live sports extra
That was Leicestershire's last hope. Yes he's a bowler, yes he's not renowned for his batting, but he can strike a good ball.
Leicestershire are in serious doubt of seeing out their 20 overs.
Leicestershire 102-9
Lovely catch from Aneurin Donald gets Glamorgan a ninth wicket of the evening.
Clint McKay tries to hit Michael Hogan away to the cover boundary, but Donald comes sprinting in and takes a lovely two-handed catch diving in.
Hogan has a first wicket of the night as last man Gavin Griffifths comes in for Leicestershire.