Middlesex all-rounder on BBC Radio 5 Live Sports Extra
Sammy-Jo Johnson is really struggling to get Deepti Sharma away. She hasn't offered her any width, her control has been excellent. It has been fantastic to see.
Rockets 14-0
Sharma continues for another five. She is so unlucky not to clean up Johnson, who edges on to her own pad before the ball misses the stumps. Causing all sorts of bother.
Post update
Alison Mitchell
Commentator on BBC Radio 5 Live Sports Extra
Poor fielding, it was straight through the hands. Inexplicable.
Rockets 13-0
Spirit will be very happy with this start, although some poor fielding allows a single to release the pressure.
Post update
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
This is very good bowling from Sharma, she's bowling exactly to her field and straight at the stumps.
Rockets 12-0
Deepti Sharma brings some spin to the game.
Decent start. Big shout for her third ball as Johnson is struck on the pad, but no finger or review.
Post update
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
A very nice gift for an opening batter, a full toss for your first boundary. It will make Sammy-Jo feel more comfortable at the crease and bring the heart-rate down a little bit.
Rockets 11-0
Boom. Right down the ground. It was a poor ball to be fair - a full bunger - and it gets what it deserves. A gift for Sammy-Jo Johnson.
Post update
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
It will be a battle of the top orders in this match, they both boast some very talented batters.
Early wickets will be key, get those middle-order batters in as quickly as possible or be prepared for a run-fest.
Rockets 6-0
Naomi Dattani is into the attack. Still pace, but this time left-arm.
She maintains the early pressure for a couple before Rachel Priest clubs one aerially over cover for the first four. Now we've started.
Rockets 2-0
Excellent start from Davies. Nagging off-stump line. It's tough for the Rockets pair to tuck in to. Davies will take a breather.
Rockets 1-0
Big swing and a thick edge takes the ball to wide third man area. It brings the Rockets their first run.
Rockets 0-0
Good length. Patted back.
Post update
An Australian/New Zealand pairing to start for the Rockets. Freya Davies will start with the ball for the Spirit...
Opening batter: Sammy-Jo Johnson
BBC/ECBCopyright: BBC/ECB
Opening batter: Rachel Priest
BBC/ECBCopyright: BBC/ECB
Post update
Here we go, then. After a damp day yesterday, we're all raring to go...
Post update
Both of these sides have played two games each, with London Spirit having won one and lost one. They're currently fifth in a table that is led by the Northern Superchargers.
Trent Rockets are yet to get a point on the board, having lost both of their matches so far. Today at the home of cricket would be a fine time and place to start rectifying that.
Post update
So Tammy Beaumont is in for the Spirit after isolating following her brother's wedding. Emily Windsor takes the place of Teresa Graves for the Rockets.
It's a mixture of blue sky and clouds above Lord's. The stands are slowly beginning to fill.
Post update
BBC Sport/Getty ImagesCopyright: BBC Sport/Getty Images
Live Reporting
Kal Sajad and Phil Dawkes
All times stated are UK
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Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
Sammy-Jo Johnson is really struggling to get Deepti Sharma away. She hasn't offered her any width, her control has been excellent. It has been fantastic to see.
Rockets 14-0
Sharma continues for another five. She is so unlucky not to clean up Johnson, who edges on to her own pad before the ball misses the stumps. Causing all sorts of bother.
Post update
Alison Mitchell
Commentator on BBC Radio 5 Live Sports Extra
Poor fielding, it was straight through the hands. Inexplicable.
Rockets 13-0
Spirit will be very happy with this start, although some poor fielding allows a single to release the pressure.
Post update
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
This is very good bowling from Sharma, she's bowling exactly to her field and straight at the stumps.
Rockets 12-0
Deepti Sharma brings some spin to the game.
Decent start. Big shout for her third ball as Johnson is struck on the pad, but no finger or review.
Post update
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
A very nice gift for an opening batter, a full toss for your first boundary. It will make Sammy-Jo feel more comfortable at the crease and bring the heart-rate down a little bit.
Rockets 11-0
Boom. Right down the ground. It was a poor ball to be fair - a full bunger - and it gets what it deserves. A gift for Sammy-Jo Johnson.
Post update
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
It will be a battle of the top orders in this match, they both boast some very talented batters.
Early wickets will be key, get those middle-order batters in as quickly as possible or be prepared for a run-fest.
Rockets 6-0
Naomi Dattani is into the attack. Still pace, but this time left-arm.
She maintains the early pressure for a couple before Rachel Priest clubs one aerially over cover for the first four. Now we've started.
Rockets 2-0
Excellent start from Davies. Nagging off-stump line. It's tough for the Rockets pair to tuck in to. Davies will take a breather.
Rockets 1-0
Big swing and a thick edge takes the ball to wide third man area. It brings the Rockets their first run.
Rockets 0-0
Good length. Patted back.
Post update
An Australian/New Zealand pairing to start for the Rockets. Freya Davies will start with the ball for the Spirit...
Opening batter: Sammy-Jo Johnson
Opening batter: Rachel Priest
Post update
Here we go, then. After a damp day yesterday, we're all raring to go...
Post update
Both of these sides have played two games each, with London Spirit having won one and lost one. They're currently fifth in a table that is led by the Northern Superchargers.
Trent Rockets are yet to get a point on the board, having lost both of their matches so far. Today at the home of cricket would be a fine time and place to start rectifying that.
Post update
So Tammy Beaumont is in for the Spirit after isolating following her brother's wedding. Emily Windsor takes the place of Teresa Graves for the Rockets.
It's a mixture of blue sky and clouds above Lord's. The stands are slowly beginning to fill.
Post update