South Africa all-rounder JP Duminy on Imran Tahir's wicket celebrations: "He is a passionate guy who loves taking wickets for South Africa. It gets him pumped up and fired up. He is a match-winner for us, and has been for some time now."

Image source, AP

For those of you wondering, South Africa will play New Zealand or West Indies in the first semi-final at Eden Park, Auckland on Tuesday 24 March.

The second semi, at Sydney on Thursday 26 March, will feature Australia or Pakistan against India or Bangladesh.

South Africa's hat-trick hero JP Duminy on TMS: "I think I was probably the only one of the team that knew I had taken a hat-trick. I hadn't come close taking one before in any type of cricket, so to do it in a World Cup quarter-final was incredible."

Image source, Reuters

Today's man of the match is South Africa spinner Imran Tahir for his 4-26.

South Africa beat Sri Lanka by nine wickets

Sri Lanka 133 (37.2 overs): Sangakkara 45; Tahir 4-26, Duminy 3-29, including hat-trick

South Africa 134-1 (18 overs): De Kock 78*

Fall of wickets: 40-1 (Amla 16)

Bowling figures: Malinga 6-0-43-1, Dilshan 2-0-10-0, Kulasekera 1-0-13-0, Kaushal 6-0-25-0, Chameera 2-0-29-0, Perera 1-0-10-0

Sri Lanka won toss

Scorecard

Sangakkara and Jayawardene are shaking hands with their opponents and team-mates alike, and even getting a few big bear hugs from some of them.

But, as has been pointed out, although they're departing the ODI stage, Sanga will play on in Test cricket for a little longer - while both will feature in England this summer: Jayawardene is playing the first half of the T20 Blast season for Sussex, while Sangakkara will be with Surrey for much of the season. Go and watch them while you can.

Allan Border
Ex-Australia captain on BBC Test Match Special

"All the talk ahead of the game was South Africa's inability to win in the knock-out stages. Sri Lanka were not allowed to get into the game. and South Africa have won the game in such a convincing manner, but you do feel sorry for the retiring Sri Lanka greats Sangakkara and Jayawardene."

So, South Africa finally have the World Cup knock-out monkey off their backs. But there's a big ovation at the SCG as the South Africans wait to applaud Kumar Sangakkara and Mahela Jayawardene, two giants of the game who are stepping off an ODI field for the final time.

Andrew Samson
BBC Test Match Special statistician

"This is the quickest successful chase to win a World Cup knockout game. The previous record was 20.1 overs, when Australia made 133-2 to beat Pakistan at Lord's in the 1999 final."

Image source, Getty Images

SOUTH AFRICA BEAT SRI LANKA BY NINE WICKETS (WITH 32 OVERS TO SPARE) TO REACH WORLD CUP SEMI-FINALS

Image source, Getty Images

And that's the win - De Kock smashes the last ball of the 18th over for four through the covers to complete a nine-wicket thumping.

Allan Border
Ex-Australia captain on BBC Test Match Special

"South Africa have stuck with De Kock in a fantastic display of faith. They go into the semi-final with all of their players having contributed at some stage of the tournament."

Listen to Test Match Special commentary via the audio icon.

Image source, Getty Images

Make that four needed - Malinga slings down a bouncer which is deemed an aerial wide.

Allan Border
Ex-Australia captain on BBC Test Match Special

"Sri Lanka will be very disappointed with the way they have played today. South Africa have sent a message that they will be a hard side to beat, but Sri Lanka just lost their way totally. They have some seriously good players and they should have been able to cope with the South Africa bowlers. Sending Kusal Perera in first up was a bold move on the surface, but I thought it a misjudged move. They should have sent in Thirimanne - it's a knockout game, go in with tried and tested performers."

If you're a Proteas fan, you can fire up the braai and start unpacking the well-known brand of lager long associated with South African cricket, as your side is on the way to a famous victory here. Malinga returns to the attack, but De Kock and Du Plessis keep chipping away with ones, twos and even a three - only five more needed now.

Image source, AP

Neil Manthorp
BBC Test Match Special

"I just wonder whether Kaushal will he summoned to the head teacher's office at some point, in this new era of zero tolerance of flex. But he is certainly an exciting prospect with what he does with the ball."

Listen to Test Match Special commentary via the audio icon.

In fact, Kaushal - who was one of the young players supported by the Foundation of Goodness charity and an MCC scholarship programme - has changed ends. De Kock edges his first ball for three, Du Plessis adds a couple more, and there's a half-hearted appeal for a wicket as the helmeted short leg takes a catch... it came off the pad. 11 needed.

Kevin Pietersen
Ex-England batsman on BBC Test Match Special

On England's exit at the group stage with two wins from six games: "I watched bits and pieces. It was just disappointing the way the tournament went. There are some really good players, but it was just the style of the way they played and they are a lot better than that.

"But it will be a good experience for some of these young players. They will see how tough it is, but I do believe it will get much better.

"I think it got as bad as it could possible get, but it's time to move on. Hopefully they will learn from it and better things will happen for England going forward."

Neil Manthorp
BBC Test Match Special

"It's just been pointed out to me that I'm about to do what no South African commentator has ever done before... commentate on a World Cup knockout win."

Listen to Test Match Special commentary via the audio icon.

Young Kaushal is off after taking 0-20 from five, Dilshan is recalled after bvowling just that solitary over with the new ball. Faf du Plessis and Quinton de Kock help themselves to ones and twos at will, reducing their requirement to 16 runs from 34 overs.