Australia book World Cup final date against hosts India
Cummins and Starc see Australia to three-wicket victory
Regular wickets keep SA in contention on spinning wicket
Head (62) and Smith (30) top-score for Australia
South Africa bowled out for 212
Miller hits 115-ball century, bringing up hundred with a six
Klaasen (47) & Miller put on 95 for fifth wicket
South Africa slump to 24-4 under grey skies
Starc & Cummins take three wickets each
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Absolute stroll in the park for Australia. Positive batting the polar opposite of the South African innings. Temba Bavuma standing not changing anything no wonder people question his captaincy.
Michael, Surrey
Geoff Lemon
BBC Test Match Special commentator
That is huge, and bizarre!
Warner was backing away, giving himself room and trying to put Markram under pressure early.
There was a bit of turn and that may be a sign of things to come.
Warner b Markram 29 (Aus 60-1)
But he's gone to Aiden Markram's first ball!
David Warner goes back attempting to cut the spinner, bowling round the wicket, but gets his angles wrong and the ball scoots on to hit middle and off.
Huge intent from David Warner so far.
Aaron Finch
Former Australia captain on BBC Test Match Special
The intent is important in a run-chase like this, get ahead of the rate because we know how important the middle phase of the innings will be.
Geoff Lemon
BBC Test Match Special commentator
Six more! This is unbelievable hitting from the Australia openers.
They are tearing South Africa apart.
A very very expensive over from Kagiso Rabada as Australia take him to the cleaners.
Travis Head ends the over with another six, clearing his front leg and mowing the ball over cow corner.
Australia going at 10s.
Steven Finn
Former England bowler on BBC Test Match Special
Magnificent from David Warner.
And another! David Warner shuffles across his stumps and slog scoops it over the boundary behind square for six more.
Geoff Lemon
BBC Test Match Special commentator
David Warner and Kagiso Rabada have had their duels over the years and this one is proving just as explosive.
This is unbelievable stuff in Kolkata, Warner is taking South Africa apart.
David Warner pummels Kasigo Rabada for another six down the ground. Worst still it's a no ball/ Free hit!
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I'm torn, of the three remaining teams South Africa are the ones I most want to win the tournament. However, I think Australia have the better chance of beating India in the final.
Adam
Steven Finn
Former England bowler on BBC Test Match Special
Any hope that South Africa had of dragging themselves back into the game, you felt it had to come with the new ball.
Geoff Lemon
BBC Test Match Special commentator
David Warner isn't holding back today!
It's quite an elegant little shot in the end and he just times it nicely over the leg side.
Australia have come out to put this game to bed early, even if it means taking a few chances.
David Warner heaves Marco Jansen across the line for six. Warner stands there and watches it all the way into the stands, admiringly.
A dominant start.
Geoff Lemon
BBC Test Match Special commentator
Travis Head only gets half of it with that first four but he gets the full quota of runs he was after.
Travis Head is motoring after taking a shine to Marco Jansen.
The Aussie opener whips Jansen powerfully through long on for four and then a couple of balls later drills it straight as a die for another.
Head thne walks down the pitch to do some graden, dabs his bat into the pitch, then readies himself for some more.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
Swung over the leg side for six! What a shot.
The Bunsen burners are let off for that one one and I'm not surprised. That was worth a flame or two.
This is becoming a handy start for Australia now.
David Warner capitalises on one a little bit short from Kagiso Rabada, swivelling to pull him high into the night sky and over the boundary for six.
A huge hit.
Steven Finn
Former England bowler on BBC Test Match Special
The problem that South Africa have is that with no Lungi Ngidi in the side, they don't have another bowler who can bowl in the powerplay.
Gerald Coetzee relies heavily on having fielders out in the deep.