Highlights on BBC Two at 23:40 BST (BBC2 NI, 00:40)
Sri Lanka collapse from 116-2 to 203 all out
Four wickets for leg-spinner Tahir (4-27)
De Villiers takes brilliant catch & executes run-out
Tharanga 57, Perera 44*, Dickwella 41
Amla makes 112-ball century for SA
Du Plessis 75, Duminy 38*, Pradeep 2-54
Phil Tufnell
Ex-England spinner on BBC Test Match Special
There's a story that Morne Morkel once walked into the groundsman's shed, instead of the changing room, after getting out in a Test match here.
Target 300
Sri Lanka are tucking into the Wayne Parnell buffet here. All you can eat. When he pitches it up, there's no swing, so it's driveable. When he's short, it's not quick enough. Pullable. Every time the ball hits the boundary, flame throwers shoot fire into the air. They'll run out of fuel at this rate.
Phil Tufnell
Ex-England spinner on BBC Test Match Special
It was a see-ball, hit-ball innings. Dickwella has certainly got South Africa rattled.
Morkel 1-0-9-1
Kusal Mendis is the new man. He doesn't hang about either. I'm still gutted that we've lost Niroshan Dickwella. Let's take a minute to reflect on his best bits...
Phil Tufnell
Ex-England spinner on BBC Test Match Special
We were saying that Morne Morkel is a good addition to this bowling line-up. Dickwella tried to whack it back over his head and it flew off the edge to third man.
Image source, Getty Images
Dickwella c Parnell b Morkel 41 (SL 69-1)
You don't mess with Morne Morkel. The bowling change works and Niroshan Dickwella's fun is over. He picks a battle with the wrong man, trying to launch the big giraffe to Kennington tube station. A thick edge flies to third man and is pouched by Wayne Parnell. It was nice while it lasted.
Phil Tufnell
Ex-England spinner on BBC Test Match Special
Sri Lanka are playing this perfectly at the moment.
Kagiso Rabada has been taken off after dropping two catches and getting carted all over London...
Alison Mitchell
BBC Test Match Special
Dickwella is a feisty character. I think he was suspended for showing dissent at the umpire's decision in Australia and clashed with Rabada in the series in South Africa.
Dickwella 41, Tharanga 17
Now Tharanga too! A drive through the covers off Parnell, then a pull in front of square for successive boundaries. It's impossible not to enjoy this (unless you're South African). These Sri Lanka openers have been brilliant.
Phil Tufnell
Ex-England spinner on BBC Test Match Special
Dickwella looks a million dollars. He's played a couple of cracking shots. He's nipped inside the line and flicked a couple of beauties to the boundary.
Target 300
And again! Wristily whipped off the pads for four. Niroshan Dickwella is illuminating the Champions Trophy with some wonderful strokeplay. South Africa are all over the shop.
Phil Tufnell
Ex-England spinner on BBC Test Match Special
South Africa have been very sleepy today, even their batting looked as though it never actually got going.
What is this shot? Dickwella gives himself room, Rabada follows him, so Dickwella leans back and still manages to cut. The limbo shot. Oh, hello! Massive! A wallop towards the gas tower, a massive hit over mid-wicket for six.
Ebony Rainford-Brent
Ex-England batter on BBC Test Match Special
If Sri Lanka can get 60 or 70 in the first 10, that will give them a massive boost.
Dickwella 27, Tharanga 8
Niroshan Dickwella is fast becoming one of my favourite cricketers. Not only does he smash it, check out his full name. Dickwella Patabendige Dilantha Niroshan Dickwella. Outstanding. Now Tharanga is in on the act too, pulling Parnell for four with a swivel of the hips. It didn't look this easy for batting earlier today.
Ebony Rainford-Brent
Ex-England batter on BBC Test Match Special
I'm excited, I feel like there's something about to go down in this match.
Target 300
It's an eventful over, Dickwella moving about his crease like a man with wheels in his shoes. Rabada oversteps, but the resulting free hit only goes for a single. It's got the air of an upset.
Dan Norcross
BBC Test Match Special
This is going from bad to worse for poor Rabada.
SL 26-0
Dropped again! Another caught and bowled, but this would have been incredible from Kagiso Rabada. Belted back by Niroshan Dickwella, Rabada can only stick out a left hand, about knee height. They either stick or they don't.