Rockets post 181-4 thanks to Hales' 59 and Malan's 38
Under-pressure Roy is bowled by Shamsi for 20 off 17 balls
Cox hits unbeaten 61 off 33 balls but lacks support from other Invincibles
Rockets have now won four of their five matches; Invincibles have won three of five
The tricky left-arm spin of Tabraiz Shamsi back into the Trent Rockets attack.
Sam Curran is growing in confidence, though, and is able to use his diminutive frame to get over the top of a ball from the South African and pull it to the boundary.
The Oval Invincibles fighting back.
Alex Hartley
Former England bowler on BBC Radio
What I like about The Hundred is the tactical side of things. If you have a bowler that's bowling well, you can extend their spell to 10 balls. You can try to make your match-ups.
Image source, BBC Sport
Issy Wong
Birmingham Phoenix & England bowler on BBC Radio
I have loved the atmosphere here tonight. It feels like a home crowd today.
Jordan Cox picks one up early from Daniel Sams and wallops it for four with a cross-batted thump. A couple of balls later and Sam Curran paddles him over the wicketkeeper's head for another
Issy Wong
Birmingham Phoenix & England bowler on BBC Radio
96% win probability for Trent Rockets, they'll certainly not mind that.
Samit Patel rattles through another set of five. A rebuilding job for Sam Curran and Jordan Cox.
Issy Wong
Birmingham Phoenix & England bowler on BBC Radio
Simply outrageous, it's the only way to describe it. What a set.
Take bow Tabraiz Shamsi.
Four runs conceded from 10 balls bowled straight through and two wickets in the bank.
Trent Rockets on top at the moment.
Alison Mitchell
BBC Radio commentator
Another one, he's dialling it again. He didn't wait for the decision, he just walked off. Shamsi is having the time of his life.
Billings lbw b Shamsi 0
Tabraiz Shamsi's celebration - taking his bowling boot off and lifting it to ear to as it's a phone - is out again! He's got Sam Billings this time.
Billings is caught deep in his crease to a ball which skids on from the spinner and he's absolutely plumb in front for a three-ball duck.
Alison Mitchell
BBC Radio commentator
Jason Roy has done better than the three ducks.
Alex Hartley
Former England bowler on BBC Radio
That's turned a mile. Such a good delivery. I think that is even getting an in-form Jason Roy out.
Roy b Shamsi 20 (Invincibles 42-2)
Jason Roy is furious. He flays his bat through the air.
But it's no disgrace to get out to a fine ball from Tabraiz Shamsi.
It's a fizzing spinning delivery from the South African spinner which does Roy for pace and flight. Superb bowling.
Alex Hartley
Former England bowler on BBC Radio
I quite liked being booed by the Manchester crowd yesterday.
Samit Patel into the attack for the Trent Rockets with his left-arm spin. He played for England once in a moon.
His first ball is a little wide and Sam Curran is able to get a single and is follow by three dots to Jason Roy.
Pressure building? Not a bit of it. Fifth ball and Roy is able to smear it through the covers. Boos from the home fans!
Image source, BBC SportAlex Hartley
Former England bowler on BBC Radio
Luke Wood has bowled really well. When he got it right in his first set, it was pretty good.
Luke Wood, short cropped blonde hair, runs in with purpose. Like a man looking to get to the post office with his mum's birthday card before the last collection.
Sam Curran is knocked off his feet by Wood's third delivery as he digs one into the pitch and the left-hander takes evasive action.
He's bowling gas.
England all-rounder Sam Curran joins Jason Roy at the crease.
Six runs and a wicket from that Sam Cook set of five balls.