Abbott starts with two slips - who are nearly called into action for the first ball of the day as it's a wide which keeper Quinton de Kock has to take, moving across to his right towards first slip. But Roy plays and misses at one that lifts and whizzes past him. If you weren't with us earlier, TMS's Simon Hughes thinks this could be a two-paced pitch. And we have our first run off the bat as Roy flicks a single off his toes.

Image source, Getty Images

Dave Fletcher: Ready for kick off BBC cricket multiple windows open on PC to help hide the BBC TMS commentary from the boss #shhhh

Umpires today are South Africa's Johan Cloete - who, let's be fair, made a couple of shocking decisions on Saturday - and New Zealand's Chris Gaffaney. Sri Lanka's Kumar Dharmasena has swapped with Gaffaney and is on TV replays today.

Teams are ready - Kyle Abbott to take the first over to England's regular openers Jason Roy and Alex Hales.

Simon Mann
BBC Test Match Special

"What would be interesting would be if South Africa get some early wickets. How would they regroup from 40-3?"

Vic Marks
Ex-England spinner on BBC Test Match Special

"It would a be a major, major achievement for England to win this series after only three games."

Laurie West-Knights: BBC say tossed coin fell more slowly at Centurion - altitude. It would be the other way round.

Physics never my forte, apologies. But Shaun Pollock definitely said the coin took a while to come down!

Vic Marks
Ex-England spinner on BBC Test Match Special

"I have never seen him play and he is 30. He is a brisk medium-pacer and has got a pretty good domestic record with bat and ball.

"His figures suggest that he is a genuine all-rounder and that has been a big difference between the teams."

Anthem time. England up first, then South Africa - the first few bats of the intro sound like they're being played on a very elderly piano.

Vic Marks
Ex-England spinner on BBC Test Match Special

"The better the pitch, the more bowling options you need. South Africa like to use Imran Tahir as an attacking weapon, bringing him on immediately after a wicket, but that does mean he has to bowl four or five spells."

Simon Mann adds: "The 'fifth bowler' for South Africa has combined figures of 20 overs, 1-155 in this series."

South Africa: Hashim Amla, Quinton de Kock (wk), Faf du Plessis, AB de Villiers (capt), JP Duminy, Farhaan Behardien, David Wiese, Kagiso Rabada, Kyle Abbott, Morne Morkel, Imran Tahir. 

England: Jason Roy, Alex Hales, Joe Root, Eoin Morgan (capt), Ben Stokes, Jos Buttler (wk), Moeen Ali, Chris Jordan, Adil Rashid, David Willey, Reece Topley.

More from England captain Eoin Morgan: "To have a guy with the potential that Jos Buttler has is great for us. 

"He is a senior player in our young dressing room and a lot of guys look up to him in that group."

Buttler followed his century in the 1st ODI with an unbeaten 48 from 28 balls in the second.

Image source, Getty Images

Simon Mann
BBC Test Match Special

"If England win this series, they'd be the first team to win a Test and ODI series in South Africa since the all-conquering Australia side, external in 2001-02."

You can listen to TMS today on BBC Radio 5 live sports extra, BBC Radio 4 Long Wave, via the BBC iPlayer Radio app and BBC Sport app, online or via your mobile device.

Paul Lewis: Can't work out why Broad is in the squad if they aren't going to play him. Are England picking Jordan just for his fielding?

You're not the first person to suggest that about Jordan. However, that stunning catch on Saturday to dismiss ABDV arguably saved England more than the 33 runs Jordan conceded in his five overs?

Image source, Reuters

If you're not familiar with Centurion, England will be playing this game - and the 4th ODI in Johannesburg - at altitude. That generally means the ball flies through the air a little easier than at sea level. Even at the toss, Shaun Pollock seemed to suggest that the coin took longer than usual to come down...

Test Match Special is just around the corner - they're on air from 11:15.

South Africa's bowling was left rather exposed on Saturday, when their tactic of employing four specialist bowlers and making up the fifth's allocation with part-timers didn't work. David Wiese, external is only playing his fourth ODI, but has a rather better bowling record of 20 wickets in 12 Twenty20 internationals.

Image source, Getty Images

England captain Eoin Morgan: "We have had a good start to the series and there is no need to make any changes.

"I think we could make changes and we would still have all bases covered."

Simon Mann
BBC Test Match Special