Fire 126-6published at 7 balls left
Target 157
Shot! Matt Critchley with a huge strike down the ground for six!
Finishing with a flourish!
Spirit post 156-6 thanks to Lawrence's 43 off 26 balls
Spinner Lawrence then takes 4-20 and seamer Wood claims 4-28 as Fire can only reach 139-9
Late hitting from Duckett, Du Plooy and Critchley gets Fire closer than expected after woeful start
Spirit move top of the table, with five wins from six games
Fire have now lost all six of their matches
Thursday's matches: Brave v Rockets women (15:30 BST) & men (19:00)
Ffion Wynne and Tom Mallows
Target 157
Shot! Matt Critchley with a huge strike down the ground for six!
Finishing with a flourish!
There are some very glum faces in the Welsh Fire dugout.
Target 157
Ben Duckett, Dwaine Pretorius and Leus du Plooy have batted really admirably for Welsh Fire tonight. The top order just looked completely out of the game.
London Spirit's bowling has been superb all the way through, though. They've chipped away at the wickets column with regularity.
Tuffers predicted it! Pitching outside leg stump and Du Plooy survives.
Phil Tufnell
Former England spinner on BBC Two
Unless it's pitched outside leg, that is dead.
Leus du Plooy moves across his stumps and tries to paddle Nathan Ellis around the corner. He misses and is struck on the leg.
The umpire raises the finger straight away after an enigmatic appeal from Ellis, but Du Plooy reviews with more hope than expectation, I suspect.
Henry Moeran
BBC Radio
After 44 balls Welsh Fire were 37-4 so they have fought their way back admirably here.
Dane van Niekerk
Oval Invincibles & South Africa captain on BBC Two
It didn't look like Pretorius was hitting the ball really well. That was taken a long way inside the boundary.
Pretorius c Ellis b Wood 23 (Fire 113-6)
Ah. Dwaine Pretorius' fun comes to an end and London Spirit can smell the top of the table now.
The batter attempts another big swat into the leg side but is unable to clear the boundary as Nathan Ellis takes a simple catch. He celebrates with a fist bump to the Lord's crowd.
Aatif Nawaz
BBC Two
People thought this match was a foregone conclusion but nobody told Leus du Plooy.
Target 157
Consecutive sixes from Leus du Plooy who is absolutely smashing it out there!
Could he have come in earlier?! He's on to 27 from 12 balls.
Target 157
Check this out from Ben Duckett.
May turn out to be in a losing cause but it's certainly a contender for shot of the day.
Dane van Niekerk
Oval Invincibles & South Africa captain on BBC Two
He's so underrated for me, Leus du Plooy.
The Fire batters are just going to have a go, and why not? Leus du Plooy helps himself to four more down the ground off Nathan Ellis.
Great shot.
Target 157
Just a matter of time now for London Spirit.
66 runs needed from 25 balls is always a tough ask, let alone when you're five wickets down.
Isa Guha
Former England bowler on BBC Two
This time Ellis misses his length and is punished for it.
Target 157
Leus du Plooy replaces Duckett but picks up where he left off, thrashing Nathan Ellis for four.
The Fire batters might as well have a swing here. Boundaries are the only way they're going to pull off a miraculous win, rather than just batting out the 100 balls for the sake of it.
Phil Tufnell
Former England spinner on BBC Two
What a spell of bowling from Dan Lawrence. What a night's work, 4-20. He's going to be chuffed.