Spirit 50-0published at 78 balls left
Oval Invincibles turn to spin for the first time in the form of Nathan Sowter.
And his first two balls are hit for four by Adam Rossington, who has raced to 31 from just 15 balls.
Summary
Curran oversteps with final ball giving Spirit another chance
But he then bowls Wood to secure win by two runs
Rossington hits superb 61 off 32 & Critchley nearly wins it with 32* off 13
Invincibles posted imposing 189-4
Jacks (68 off 42), Klaasen (46* off 24) and Sam Curran (35 off 17) all impress
Invincibles now four points clear at top of table
Spirit 50-0published at 78 balls left
Spirit 42-0published at 80 balls left
Target 190
Zak Crawley keeps the score ticking over, complementing his partner Adam Rossington's more aggressive approach nicely.
There's still a long way to go, but they've started positively.
Postpublished at 20:19 British Summer Time 15 August 2023
He certainly does...
Postpublished at 20:18 British Summer Time 15 August 2023
Melissa Story
BBC Test Match Special commentatorRossington looks up for it here.
Spirit 38-0published at 84 balls left
Sam Curran is into the attack and is greeted by a wallop for six from the bat of Adam Rossington.
Spirit 32-0published at 85 balls left
Target 190
Johnson tidies up with a few leg byes and a couple of singles from his next five.
Spirit 27-0published at 90 balls left
And five wides from Spencer Johnson to follow.
Spirit are racing along.
Spirit 22-0published at 90 balls left
Target 190
Not a great start for Zak Chappell.
After the six and a four, he bowls a no-ball after knocking the bails off with his knee.
That gifts his namesake Crawley a free hit, which he wallops back down the ground for another boundary.
Postpublished at 20:11 British Summer Time 15 August 2023
Melissa Story
BBC Test Match Special commentatorAdam Rossington has got off to a flier.
Spirit 15-0published at 92 balls left
And drilled through the covers for four more, as Rossington goes for a bit more of a traditional shot this time.
Spirit 11-0published at 93 balls left
And there's the first six!
Adam Rossington shuffles across his crease and scoops a good-length ball on off stump over his shoulder for four.
Unbelievable.
Postpublished at 20:09 British Summer Time 15 August 2023
Oval Invincibles started quite slowly before launching, so no need for Spirit to panic if they can't get going early.
They can set themselves up for a big finish, as Heinrich Klaasen did.
Spirit 5-0published at 95 balls left
Target 190
An effortless boundary from Adam Rossington.
It's nothing more than an inside edge off a defensive prod, but with Johnson's pace, it flies away for four.
Postpublished at 20:05 British Summer Time 15 August 2023
Thanks, Sam.
It'll be the exciting Spencer Johnson with the ball for Oval Invincibles, with England Test opener Zak Crawley and Adam Rossington getting things started for London Spirit.
Postpublished at 20:03 British Summer Time 15 August 2023
London Spirit certainly have it all to do but if they can chase this down, they will move up to second in the table and put themselves right in the mix to make the knockout stages.
They'll have to go for it so this promises to be a very exciting chase. To take you through it, it's over to Ffion Wynne.
Postpublished at 19:58 British Summer Time 15 August 2023
WinViz gives Oval Invincibles an 81% chance of victory after posting 189-4.
If that's right, the Invincibles will be four points clear at the top with two games to play and within touching distance of a place in the final...
Postpublished at 19:55 British Summer Time 15 August 2023
It was sixes galore once the Oval Invincibles got going - 12 maximums in total with Will Jacks and Heinrich Klaasen hitting four apiece.
Sam Curran hit three and Jason Roy the other.
This is your one-stop shop for those big hits...
Media caption, Jacks smashes big six off Ellis
Postpublished at 19:52 British Summer Time 15 August 2023
Daniel Norcross
BBC Test Match SpecialLondon Spirit are not out of it if they lose, because the top teams are so bunched together. But if the Invincibles win, they'll be sniffing an automatic qualification spot.
Invincibles 189-4published at 100 balls
No hat-trick for Nathan Ellis as Sam Billings sweeps the last ball for two.
A strong total for Oval Invincibles as they look to extend their lead at the top of the table. Heinrich Klaasen finishes unbeaten on 46 from 24 balls.
London Spirit need 190 to win and move up to second.
WICKETpublished at 99 balls
Whiteley c Rossington b Ellis 0 (Invincibles 187-4)
Banged in short, top-edge and a simple catch behind.
Ross Whiteley departs first ball and Nathan Ellis is on a hat-trick.