De Kock 72 seals Brave win and takes them to seven points
Lyth and Rashid both take two wickets for Superchargers who stay on five points
Earlier, Lyth bowled from very first ball of match
The most exciting thing on the field at the moment is probably Colin de Grandhomme's hair. It looks like the crowd are giving him some chat about it.
Batters Dane Vilas and John Simpson just trying to ease the pressure at the moment, but Brave have properly stamped on their momentum.
Lots of singles. This is classic 'rebuilding'.
Image source, BBC Sport/ECB
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
Chris Jordan doesn't drop many catches, never mind the ones that go straight to him. Harry Brook was unsure what to do after losing his captain and didn't fully commit to the shot.
Brook c Jordan b Lintott 14 (Superchargers 69-4)
Ah. Brook goes for the big shot, maybe feeling the pressure to increase the scoring rate after David Willey got out, but picks out Chris Jordan on the boundary.
Every time the Superchargers start to look comfortable, the Brave take a wicket - a partnership is needed here for the batting side.
Image source, BBC SportNo, he hasn't. He was in by a country mile.
Has Harry Brook been run out?
Image source, BBC Sport/ECB
Charles Dagnall
Commentator on BBC Radio 5 Live Sports Extra
Willey shaped to pull the ball and he's been cleaned up. A timely wicket for the Southern Brave.
Willey b Briggs 24 (Superchargers 65-3)
Big wicket!
Willey and Brook were just starting to hit the accelerator before the Superchargers captain takes a big heave at Danny Briggs and completely misses.
Chris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
Brook looks so composed for such a young player. He looks like time is in his favour at the moment, with everything happening in slow motion.
Ooh, lovely. Harry Brook skips down the pitch and lofts the ball for four straight down the ground. It looks effortless.
Charles Dagnall
Commentator on BBC Radio 5 Live Sports Extra
Colin de Grandhomme was looking at where he wa going to throw it before he picked it up. It's gone straight through his hands.
Oh, Colin.
There's a misfield on the boundary from Colin de Grandhomme that goes straight through him for four.
The innings started quite dramatically, to say the least...
Just watching that catch from Alex Davies to get rid of Chris Lynn and it probably deserved a bit more of a reaction - he was diving forward on the boundary and picked it up low on the ground.
Anyway, over to Willey and Harry Brook - who's in great form - to rebuild.
Image source, BBC Sport/ECBChris Green
Middlesex all-rounder on BBC Radio 5 Live Sports Extra
Chris Lynn will feel hard done by, but Chris Jordan executes his skills to perfection.
Charles Dagnall
Commentator on BBC Radio 5 Live Sports Extra
Chris Lynn really did connect well with that - almost too well, and down the throat of deep cover it goes!