Postpublished at 20:04 British Summer Time 7 September 2019
Charles Dagnall
BBC Test Match Special commentator
First Derbyshire bowler to take two caught and bowleds in a T20.
Derbyshire beat Gloucestershire by seven wickets in T20 Blast quarter-final
Derbyshire reach Finals Day for first time
Derbyshire join Essex, Notts Outlaws and Worcestershire Rapids at Finals Day on 21 September
Semi-final draw: Derbyshire v Essex, Worcestershire v Notts
Relive best of action with in-play video clips available to UK users
Jamie Lillywhite
Charles Dagnall
BBC Test Match Special commentator
First Derbyshire bowler to take two caught and bowleds in a T20.
Critchley 4-0-21-2
End of the over and the end of Matt Critchley's spell.
Tremendous effort from the leggie.
Steven Mullaney
Nottinghamshire all-rounder on BBC Radio 5 Live Sports Extra
You look at little things that make you win a quarter final and pieces of brilliance and I can't explain how hard that was, running back, especially off your own bowling.
Charles Dagnall
BBC Test Match Special commentator
That is a wonderful piece of work. His arms and legs were going everywhere.
Taylor c&b Critchley 4 (Glos 82-5)
Oh my word - what a catch this is!
Matt Critchley takes one of the best caught and bowleds you are ever likely to witness.
It's launched high into the night sky by Jack Taylor and Critchley off his own bowling, sprints back and over his shoulder with a full-length dive takes it two-handed.
What a moment!
It's been 43 balls since Gloucestershire last hit a boundary.
Incredible stat. Superb discipline this in the field from Derbyshire.
Steven Mullaney
Nottinghamshire all-rounder on BBC Radio 5 Live Sports Extra
Luis Reece has had a bet. I'm pretty sure he put on social media about raising money, so it's for a good cause.
Luis Reece now on to bowl for Derbyshire with blue-rinsed dyed hair.
Interesting....
Another over sprints by for Derbyshire and Matt Critchley takes a wicket and concedes just five runs.
Tough going this for Gloucestershire at the moment.
Charles Dagnall
BBC Test Match Special commentator
What a bizarre dismissal and Gloucestershire are in a world of trouble. A nothing shot. No real celebrations from Derbyshire, almost as if they were agog at how easy the dismissal was.
Higgins c&b Critchley 9 (Glos 71-4)
What a tame dismissal.
Ryan Higgins gifts the simplest of simple caught and bowled chances to Matt Critchley and Gloucestershire are now four down.
Steven Mullaney
Nottinghamshire all-rounder on BBC Radio 5 Live Sports Extra
They are going to have to take a little bit of time to recover and that plays into Billy Godleman's hands as Derbyshire captain.
Run rate 6.55
More tight stuff from Derbyshire as they keep squeezing the runs.
One of the reasons why Derbyshire find themselves on top was this moment when the dangerous Miles Hammond fell for 31...
Steven Mullaney
Nottinghamshire all-rounder on BBC Radio 5 Live Sports Extra
Derby going really well, they would have taken that after Gloucester were 30-odd for none. They are in the box seat.
Run rate 6.70
Welcome runs for Gloucestershire as Ryan Higgins picks up a couple off Matt Critchley.
Good sliding stop on the rope by the sweeper Wayne Madsen.
Halfway stage and the last five overs have definitely been Derbyshire's.
Steven Mullaney
Nottinghamshire all-rounder on BBC Radio 5 Live Sports Extra
I don't think there was a single there with that run-out.
Rebuilding time now for Gloucestershire after that quick start.
Two wickets in that last over for Derbyshire.
Steven Mullaney
Nottinghamshire all-rounder on BBC Radio 5 Live Sports Extra
What a massive part of this quarter-final - massive part.
Klinger run out 15 (Glos 58-3)
Well, well - this is a huge moment! Michael Klinger run out!
He is sent back by his new partner Ian Cockbain as he hit it straight to Ravi Rampaul at short third man and he couldn't get back in time before the bails were whipped off.