Postpublished at 18:55 British Summer Time 27 August 2021
Before we get the action under way this evening - let's remind you how the three other quarter-finals played out earlier this week....
Kent Spitfires beat Birmingham Bears by 21 runs
Kent made 162-7 after Bears won toss and bowl
Half-centuries from Daniel Bell-Drummond and Sam Billings; Tim Bresnan took four wickets
Bears fall short as they are bowled out for 141; Matt Milnes takes 4-24
Kent join Sussex Sharks, Hampshire Hawks and Somerset at Finals Day
Hampshire v Somerset and Kent v Sussex in semi-finals at Edgbaston on Saturday, 18 September
Adam Lanigan and Adam Williams
Before we get the action under way this evening - let's remind you how the three other quarter-finals played out earlier this week....
Ball-by-ball commentary across BBC national and local radio
Make sure you tune in to this evening's fixture across BBC Radio 5 Live Sports Extra, BBC Radio Kent and BBC Radio CWR.
Find your commentary of choice at the top of this page by either clicking or tapping the play icon.
Alternatively, Sports Extra's coverage is also available on DAB Digital Radio and via the BBC Sounds app.
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Kent Spitfires v Birmingham Bears (19:00 BST)
Set fair for an uninterrupted evening in Canterbury tonight for this last quarter-final tie.
Not the warmest of evenings, but fingers crossed, dry.
Kent Spitfires captain Sam Billings:
"We were going to bat. Historically it has been a good thing for us to bat first. We want to get a score on the board and hopefully put them under pressure.
"One-Day wickets at Canterbury are usually very good and we'll get first use of it. Hopefully we'll make the most of it."
Birmingham Bears captain Will Rhodes:
"We think there's a bit of dew in the pitch and it won't change too much. Sides have been successful chasing this week, and hopefully it's the same for us.
"The pitch looks a bit of a belter and this gives us a first look so we'll know what we need to do with the bat."
Kent Spitfires v Birmingham Bears (19:00 BST)
Birmingham Bears welcome Chris Woakes, Adam Hose and all their Hundred stars back.
That also includes Jake Lintott, Danny Briggs, Chris Benjamin and Sam Hain.
But seamers Henry Brookes, Olly Stone, Olly Hannon-Dalby and Ryan Sidebottom are all sidelined through injury as well as Dan Mousley who has been so unlucky to sustain a second fractured finger this season.
Tim Bresnan is there though to add some crucial experience.
Birmingham: Adam Hose, Rob Yates, Sam Hain, Will Rhodes (capt), Chris Benjamin, Michael Burgess (wk), Tim Bresnan, Chris Woakes, Danny Briggs, Craig Miles, Jake Lintott.
Kent Spitfires v Birmingham Bears (19:00 BST)
Hosts Kent welcome a number of players back following their commitments in The Hundred.
Sam Billings returns to captain the side with Daniel Bell-Drummond resuming his vice-captaincy.
Zak Crawley is also down to open.
Overseas stars Adam Milne and Qais Ahmad also return to bolster the bowling attack.
Kent decide to leave out veteran all-rounder Darren Stevens.
Kent: Zak Crawley, Daniel Bell-Drummond, Joe Denly, Sam Billings (capt & wk), Jack Leaning, Jordan Cox, Alex Blake, Adam Milne, Qais Ahmad, Matt Milnes, Freddie Klaasen.
Kent Spitfires v Birmingham Bears (19:00 BST)
News from the middle then before we get going.
Birmingham Bears skipper Will Rhodes has called correctly after Sam Billings flipped the coin and he has chosen to bowl first.
We've seen two successful run-chases out of three so far this week, will the Bears make it three?
Kent Spitfires v Birmingham Bears (19:00 BST)
Good evening!
Apologies, a bit of fudged effort that to mimic the 1960s prog-rock anthem from Iron Butterfly there, but it's about as close as I could get to sticking a pun in straight up about where our last T20 Blast quarter-final tie takes us.
We're at Canterbury as both Kent and Birmingham Bears face off to try and claim the last remaining spot at Finals Day next month.
Sussex Sharks, Hampshire Hawks and Somerset are all already there after thrilling victories this week - which of these two will complete the set?
Stay tuned with us to find out....