England lose four wickets for five runs as South Africa claim thrilling win
Morgan (52) smashes 16 in penultimate over before being caught in the deep
Roy hits 22-ball half-century for England - the joint-second fastest ever
South Africa stutter to 177-8 after losing four wickets in last two overs
Jordan takes two wickets in two balls in final over
Bavuma stars at top of the order with 43
England won toss; First of three T20s
Roy c Ngidi b B Hendricks 70 (Eng 132-3)
A very odd dismissal.
Beuran Hendricks bangs a slower ball down very short and the ball sits up wide outside off.
Jason Roy goes to fetch it but is through the shot too early and can't generate enough power on the ball, instead top edging it round the corner to Lungi Ngidi at short fine leg.
Image source, ReutersRoy 70 off 37 balls
Jason Roy has absolutely walloped Beuran Hendricks' first ball through mid-wicket for four.
Tremendous power.
#bbccricket
Ross Jacobs: Can never relax when England chase down a score. I blame the World Cup final...
Image source, Getty ImagesEngland need 50 from 36 balls.
Can South Africa fight back?
Left-arm seamer Beuran Hendricks is finally entering the fray.
Shamsi 4-0-25-0
And Eoin Morgan has marmalised Tabraiz Shamsi through wide long-on for four.
The South African spinner spoils his last over with a half-tracker and Morgan doesn't miss out.
Jason Roy targets deep mid-wicket but just miscues for one.
Tabraiz Shamsi has bowled very well but just has one ball left.
Image source, ReutersShamsi appeals for lbw against Roy but nothing doing.
Tight over so far.
It stands for Young Jonny Bairstow, Ruth.
Or perhaps Yorkshire's Jonny Bairstow as he ages.
Image source, Getty Images#bbccricket
Ruth in Dereham: Is it very remiss of me not to understand why Jonny Bairstow is YJB? Please put me out of my misery!
Need 58 off 42 balls
Not that Eoin Morgan is likely to make sure Jason Roy gets enough of the strike to bring up his ton, mind.
A single off the last from the England captain.
Dale Steyn has a strong return to international cricket - 4-0-33-1.
That's so very good from Jason Roy.
A ball on off stump but he generates so much power from his wrists to flick it through mid-wicket for four.
Time for Roy to get a hundred here?
Dale Steyn is back on for his final over.
Roy 60, Morgan 15
A beauty from Tabraiz Shamsi as he gets a leg-break to really bite past Eoin Morgan's outside edge.
Elsewhere, Morgan and Roy continue to find gaps to tick the scoreboard over.
Tim Peach
BBC Radio 5 Live in East London
There's a brilliant atmosphere around Buffalo Park - looks a complete sell-out, the smell of the braai drifting across the breeze and the beer's flowing.
Target 178
And now Phehlukwayo serves up a poor ball down the leg side that Morgan helps on its way for four more.
Bang! Eoin Morgan breaks the shackles, backing away to cut it forcefully through point for four.
Andile Phehlukwayo continues to pose problems and Jason Roy's solution is to try and scoop it over the keeper.
He has to improvise when the ball isn't there to hit but manages to, picking up one to short fine leg.
Tim Peach
BBC Radio 5 Live in East London
The brass band are keeping everyone entertained at Buffalo Park.
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Chris Payne: re Alex Adams 18:22... Roy is definitely in conversation as best white-ball opener but Buttler is a white-ball freak and greatest ever.
Need 83 runs off 60 balls
We reckon Eoin Morgan is wearing his World Cup pads, when England had sky blue trousers.
They're lucky I guess. He'd be getting fined for having the wrong kit if he wasn't the captain.
Top over by Tabraiz Shamsi, conceding just three singles.
England ahead of the rate at halfway but can they avoid the collapse that South Africa had?