Higham takes two wickets for Rockets
Knight, dropped on 10, makes 31 for Spirit
Rockets post highest total in women's Hundred
Priest hits four sixes in 42-ball 76
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
Beautiful footwork from Heather Knight, coming down to meet the ball and piercing that same gap. These two are building a nice partnership. They know they have the key. They need to bat time and take it deep while also scoring boundaries.
#bbccricket
Mark Puttick: Average score from a free hit in the women's hundred: 2. 2 fours, 1 six, 1 two, 2 ones, 3 dots.
Need 100 from 65 balls
A carbon copy of the previous boundary as Knight once again strides down the wicket and drills Sarah Glenn for four.
For all of Dottin's power, Heather Knight plays a glorious textbook drive through the off side for four runs.
This batting pair really complement each other.
Two dot balls to end the set of five for Sciver but the damage was done with 14 runs of those first three deliveries.
Oh my! Another boundary as Dottin is down on knee and slaughters the ball through long-off.
Four more to Dottin, this time it's clubbed through square leg.
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
Wow. That is an unbelievable shot. Out of nowhere. Sciver is a very good bowler, but not good enough there. What a way to start the set.
Nat Sciver is introduced to the bowling attack and is greeted with a heave up and over the mid-wicket boundary by Dottin. She can really strike a ball!
We've spoken about the depth of this Spirit batting line-up but they will need a big partnership here from their skipper Knight and the world class Dottin.
It's time to earn your worth.
Image source, BBC Sport
Image source, BBC/ECBChris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
Brunt was pumped up there. You could see how much that one met. London Spirit are under pressure now.
Dattani c Johnson b Brunt 9 (Spirit 25-2)
Katherine Brunt strikes!
Naomi Dattani ends the ball skywards on the leg side, it's in the air for quite a while and Sammy-Jo Johnson takes a well-judged grab over her shoulder.
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
Bryce is just rolling the wrist a little bit and creating that inswing. But the key is that line and length. She has bowled straight and they have not been able to get her away.
Need 128 from 80 balls
Bryce deserved that wicket, having really stopped the flow of runs. She concedes just five runs from her set of 10.
Image source, BBC/ECBChris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
The Rockets know how big that wicket is. Bryce has been fantastic here. So hard to get away. The pressure built. Tammy Beaumont couldn't find the middle of the bat and was caught trying to play that release shot.
Beaumont c Glenn b Bryce 13 (Spirit 23-0)
Chipped straight to mid-on!
The pressure of the dot balls was starting to show as Tammy Beaumont drags the ball straight into the hands of Sarah Glenn.
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
Bryce has bowled a great set so far. Good length, just moving it in a touch.
Brilliant comeback from Bryce, four dot balls. Will we see another set of five from the seamer?
I tell you what, I've really got accustomed to The Hundred rules a lot quicker than I thought I would.