Emily Arlott, who has two wickets for just four runs, has five balls left and she's going to bowl them now.
Post update
BBC SportCopyright: BBC Sport
Post update
Henry Moeran
BBC Radio
Dattani goes hard down the ground and that changes everything!
Spirit 71-6
Need 12 runs to win
Single, dot, FOUR!
Naomi Dattani gets the boundary that Spirit so desperately needed with a gloriously timed drive down the ground.
Here we go.
10 balls. 12 runs.
Spirit 66-6
Need 17 runs to win
Naomi Dattani wants a boundary but can only hit it straight back at Kirstie Gordon, who leaps like a salmon but the ball just evades her left hand.
Post update
Abhishek Jhunjhunwala
Former IPL batter on BBC Radio
Birmingham Phoenix have to take a risk if they want to win. London Spirit will keep taking singles.
Spirit 65-6
Need 18 runs to win
This is where it gets tense!
Which way is this one going to go? The odds say Spirit, but this game has been far from predictable so far.
Post update
Abhishek Jhunjhunwala
Former IPL batter on BBC Radio
If Birmingham Phoenix want to win this, they need a wicket now!
Spirit 64-6
Bit of innovation from Scrivens, ramping Georgia Elwiss over her shoulder and does well to run two, making it back safely with a good dive.
Spirit 60-6
Need 23 runs to win
Smart cricket from Naomi Dattani, who holds the key to this innings and can guide young Scrivens along with her.
Scrivens hits the ball into a gap in the leg side and Dattani immediately yells for two, which they make comfortably in the end.
BBC SportCopyright: BBC Sport
Post update
BBC SportCopyright: BBC Sport
Post update
Daniel Norcross
BBC Radio
That was an insane attempt at a run! Had that been accurate, Phoenix could've got the wicket.
Spirit 55-6
Target 83
Oooh, the first signs of nerves from Grace Scrivens, who has been remarkably calm for an 18-year-old in this situation. She sets off for a calamitous run when the ball has just plopped in front of her feet, but Dattani wisely sends her back.
25 balls. 28 runs.
Post update
Here's the moment that started the collapse for Spirit. A piece of brilliance from Sophie Devine.
Spirit 52-6
Bad news for Emily Arlott. After 11 balls and two wickets, she has conceded a run.
Post update
Abhishek Jhunjhunwala
Former IPL batter on BBC Radio
Just one partnership is what London Spirit needed.
Post update
Daniel Norcross
BBC Radio
This is bubbling up to a tight finish but if Phoenix pick up a few wickets, that could be it.
Spirit 51-6
Target 83
Singles, singles, singles.
It's ticking down nicely for Spirit but they're not running away with it, so Phoenix will still feel like they're in the game.
BBC SportCopyright: BBC Sport
Spirit 48-6
Target 83
Simple but smart cricket from Dattani and Scrivens, just ticking over in singles which is all they need.
A handy little partnership is building, but whenever that's happened previously in the innings, someone's done something silly and got out. Can these two withstand the pressure?
Post update
Alex Hartley
Former England bowler on BBC Radio
If you're a Birmingham Phoenix player here, just keep Dattani off strike.
Live Reporting
Ffion Wynne and Tom Mallows
All times stated are UK
Post update
Emily Arlott, who has two wickets for just four runs, has five balls left and she's going to bowl them now.
Post update
Post update
Henry Moeran
BBC Radio
Dattani goes hard down the ground and that changes everything!
Spirit 71-6
Need 12 runs to win
Single, dot, FOUR!
Naomi Dattani gets the boundary that Spirit so desperately needed with a gloriously timed drive down the ground.
Here we go.
10 balls. 12 runs.
Spirit 66-6
Need 17 runs to win
Naomi Dattani wants a boundary but can only hit it straight back at Kirstie Gordon, who leaps like a salmon but the ball just evades her left hand.
Post update
Abhishek Jhunjhunwala
Former IPL batter on BBC Radio
Birmingham Phoenix have to take a risk if they want to win. London Spirit will keep taking singles.
Spirit 65-6
Need 18 runs to win
This is where it gets tense!
Which way is this one going to go? The odds say Spirit, but this game has been far from predictable so far.
Post update
Abhishek Jhunjhunwala
Former IPL batter on BBC Radio
If Birmingham Phoenix want to win this, they need a wicket now!
Spirit 64-6
Bit of innovation from Scrivens, ramping Georgia Elwiss over her shoulder and does well to run two, making it back safely with a good dive.
Spirit 60-6
Need 23 runs to win
Smart cricket from Naomi Dattani, who holds the key to this innings and can guide young Scrivens along with her.
Scrivens hits the ball into a gap in the leg side and Dattani immediately yells for two, which they make comfortably in the end.
Post update
Post update
Daniel Norcross
BBC Radio
That was an insane attempt at a run! Had that been accurate, Phoenix could've got the wicket.
Spirit 55-6
Target 83
Oooh, the first signs of nerves from Grace Scrivens, who has been remarkably calm for an 18-year-old in this situation. She sets off for a calamitous run when the ball has just plopped in front of her feet, but Dattani wisely sends her back.
25 balls. 28 runs.
Post update
Here's the moment that started the collapse for Spirit. A piece of brilliance from Sophie Devine.
Spirit 52-6
Bad news for Emily Arlott. After 11 balls and two wickets, she has conceded a run.
Post update
Abhishek Jhunjhunwala
Former IPL batter on BBC Radio
Just one partnership is what London Spirit needed.
Post update
Daniel Norcross
BBC Radio
This is bubbling up to a tight finish but if Phoenix pick up a few wickets, that could be it.
Spirit 51-6
Target 83
Singles, singles, singles.
It's ticking down nicely for Spirit but they're not running away with it, so Phoenix will still feel like they're in the game.
Spirit 48-6
Target 83
Simple but smart cricket from Dattani and Scrivens, just ticking over in singles which is all they need.
A handy little partnership is building, but whenever that's happened previously in the innings, someone's done something silly and got out. Can these two withstand the pressure?
Post update
Alex Hartley
Former England bowler on BBC Radio
If you're a Birmingham Phoenix player here, just keep Dattani off strike.