Fire 89-4published at 82 balls
David Willey is the next bowler into the attack. His first two balls go for two singles.
Fire can only post 114-4, despite Ben Duckett's 64 not out
Lyth blasts 47 off 34 balls to get Superchargers off to flying start
Superchargers captain Du Plessis adds 32 off 24 as his side win by six wickets with nine balls to spare
Fire have now lost all seven of their matches
Superchargers keep hopes of reaching knockout stages alive
Saturday's matches: London Spirt v Oval Invincibles women (15:30 BST) & men (19:00)
Tawhid Qureshi and Josef Rindl
David Willey is the next bowler into the attack. His first two balls go for two singles.
Tom Abell
Somerset all-rounder on BBC radio
Anything upwards of forty [more runs] would be good finish to the innings. It's been a struggle but they've found a little bit of rhythm in the last ten balls and hopefully they can maintain that.
With twenty balls to go you feel like Welsh Fire will go all-out now.
Tom Abell
Somerset all-rounder on BBC radio
A welcome relief for Welsh Fire. A great shot from Du Plooy.
Our first six!
Leus du Plooy takes two steps down the wicket before smashing Wayne Parnell over the top for a maximum.
Tom Abell
Somerset all-rounder on BBC radio
That's really good cricket. He's just hit two boundaries. Clever cricket from Duckett.
Duckett 41, Du Plooy 10
And Duckett finishes Miles' set with a two to the leg side. That's 10 runs from the last three balls.
Tom Abell
Somerset all-rounder on BBC radio
Another brilliant shot from Duckett!
Two in two, boundaries at Sophia Gardens are like buses. Another short ball is pulled away for four.
Nikesh Rughani
BBC Radio
A great bit of fielding from Wiese but not enough to stop that boundary. A welcome boundary and Duckett picked that gap perfectly.
Here we go. Ben Duckett pulls Craig Miles away for four.
Duckett 31, Du Plooy 10
Craig Miles is next into the attack.
When will the Fire accelerate and start swinging?
Tom Abell
Somerset all-rounder on BBC radio
There doesn't seem to be a huge amount of intent and there is no pressure being applied to the Northern Superchargers.
Samit Patel
Trent Rockets & former England all-rounder on BBC Radio
We're not seeing any big swings or drives from Duckett. They need to work out what a winning score is.
Only 30 balls remain.
Even if Welsh Fire score another 50 runs they'll only end up on 117. That seems well below par.
Samit Patel
Trent Rockets & former England all-rounder on BBC Radio
I like the intent there from Du Plooy. He's trying to strike the ball around the pitch and get a few runs.
David Wiese is bowling a very good length, keeping things tight. His first three balls go for four runs.
A great set of 20 from Adil Rashid who finishes with figures of 1-17.
He's put the Superchargers in a brilliant position. The Fire are going nowhere!
Samit Patel
Trent Rockets & former England all-rounder on BBC Radio
Rashid is not being predictable which is really good to see.