Gloucestershire 123-2 (Klinger 59, Marshall 16)published at 24 overs
Target 264
A very tidy and astonishingly quick over from Adam Lyth, as just three runs come from it. Blink and you'll miss it cricket.
Summary
Yorkshire make 263-9 from their 50 overs
Gloucestershire reach target with three overs to spare
Glos captain Michael Klinger hits unbeaten 137
Surrey play Notts in Monday's semi-final
Gloucestershire 123-2 (Klinger 59, Marshall 16)published at 24 overs
Gloucestershire 120-2 (Klinger 57, Marshall 15)published at 23 overs
Target 264
The experienced pair at the crease have got the visitors back on track. Michael Klinger perfectly times a pull to the boundary off Richard Pyrah, but there is a brief moment of panic for Gloucestershire as Hamish Marshall doesn't connect properly and the ball bounces just in front of Jack Leaning at mid on.
England opener and very occasional spinner Adam Lyth into the Yorkshire attack now.
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Gloucestershire 111-2 (Klinger 51, Marshall 12)published at 22 overs
Target 264
Hamish Marshall, with his fine head of hair, looks like he could be a perfect partner for Michael Klinger as he collects a couple of twos before a lovely drive off young spinner Karl Carver goes to the boundary.
Richard Pyrah is being brought into the Yorkshire attack now.
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Gloucestershire 101-2 (Klinger 50, Marshall 3)published at 21 overs
Target 264
Michael Klinger has proved to be Gloucestershire's talisman in this competition, and he reaches his fifth consecutive half century in the One-Day Cup - this one off 58 balls - by pushing a single off Will Rhodes.
It goes without saying, Yorkshire will want to get the Australian out soon.
Gloucestershire 98-2 (Klinger 49, Marshall 1)published at 20 overs
Target 264
Michael Klinger is joined in the middle by Hamish Marshall, two players with a combined 71 years between them.
Klinger continues to be aggressive and smashes youngster Karl Carver straight down the ground for a massive six, followed by a single that leaves him needing one more for a half century.
Gloucestershire need another 166 for victory.
Postpublished at 15:44
Jack Russell
Ex-Gloucestershire and England wicketkeeper on BBC Radio 5liveQuote MessageI don't think Gareth Roderick needed to do that. He maybe showed a bit of inexperience there. That's the pressure of a semi-final and that has just given Yorkshire an unnecessary lift.
WICKET Roderick (c Leaning b Rhodes 18)published at 18.5 overs
Gloucestershire 90-2 (Klinger 42)
Gareth Roderick plays a pretty loose shot straight to mid-on to give Will Rhodes his first wicket.
Jack Leaning was the man to take the catch, and his father Andy, a former York City and Sheffield United goalkeeper, would have been proud of his safe pair of hands.
Image source, PAGloucestershire 88-1 (Klinger 41, Roderick 17)published at 18 overs
Target 264
Karl Carver's first over costs five runs and the game seems to be going through a little bit of a lull at the moment.
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Who would have thought we would be enjoying cricket in bright sunshine at the beginning of September? The great British weather is completely unpredictable.
Gloucestershire 83-1 (Klinger 39, Roderick 14)published at 17 overs
An appeal for lbw against Gareth Roderick by Will Rhodes, but the umpire is not interested in the slightest and it seems like it was going over the top.
But all Gloucestershire get from the over is one single. The change in bowlers from the experienced duo of Steven Patterson and Tim Bresnan to Will Rhodes and 17-year-old Matthew Fisher seems to have paid off.
However, Fisher is about to be replaced by 19-year-old spinner Karl Carver, in for Adil Rashid, who's on England duty.
Gloucestershire 82-1 (Klinger 39, Roderick 13)published at 16 overs
With the Gloucestershire run rate dropping to just four an over, Michael Klinger hits a lovely shot out to long-off, which only bounces once before going over the ropes.
He also adds two more from Matthew Fisher, who has nevertheless looked impressive so far.
Postpublished at 15:28
Yesterday's incident involving Ben Stokes and Mitchell Starc prompting a lot of comment today - but the England all-rounder decides discretion is the best policy...
Gloucestershire 76-1 (Klinger 33, Roderick 13)published at 15 overs
A very solid over from Will Rhodes as he allows just three singles off his deliveries. The runs are beginning to dry up for the visitors at Headingley.
Gloucestershire 73-1 (Klinger 32, Roderick 12)published at 14 overs
Image source, PAMatthew Fisher is again economical, with just three coming off his latest over.
Remember that Yorkshire have not picked Ryan Sidebottom and Jack Brooks for this game - a duo that have a combined total of 89 wickets in the Championship.
They have decided to stick with the team that got them here. Will that faith prove costly?
Gloucestershire 70-1 (Klinger 31, Roderick 10)published at 13 overs
Number three batsman Gareth Roderick gets in on the act now, moving slightly to off to flick two deliveries down the leg-side off Will Rhodes for his first boundaries of the day.
He punches a single off the final delivery as the visitors collect 10 from that over.
Gloucestershire 60-1 (Klinger 30, Roderick 1)published at 12 overs
Well that was a fine over from young Matthew Fisher, with just three runs coming off it.
But remember Gloucestershire's key man Michael Klinger is still out there.
Gloucestershire 57-1 (Klinger 29, Roderick 0)published at 11 overs
Just a single off Will Rhodes' first over of the day as he replaces Steven Patterson, with Gareth Roderick the new batsman at the crease.
Yorkshire must take advantage of this position now following Gloucestershire's positive start to their innings.
get involved Get Involved via #bbccricketpublished at 15:14 British Summer Time 6 September 2015
There is certainly a lot of love out there for young Matthew Fisher.