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Australia win by five wickets to pick up first victory
They chase 210 with 14.4 overs to spare
Australia were 24-2 after Madushanka traps Warner & Smith lbw in fourth over
Inglis adds 58, Marsh 52 & Labuschagne 40
Sri Lanka slip from 125-0 and 157-1 to 209 all out
Leg-spinner Zampa improves from poor first spell to take 4-42
Australia's chase of 210 was delayed by rain and over safety concerns for players and spectators due to sand storm and high winds
Part of stadium branding and temporary structures came down during SL innings but no injuries, say ICC
Carlos Brathwaite
Ex-West Indies all-rounder on BBC Test Match Special
The resurgence was led by David Warner's brilliance in the field and Glenn Maxwell with the ball, and with his energy.
It allowed Australia to fight back and disrupt Sri Lanka's start, which was a brilliant stand between Kusal Perera and Pathum Nissanka.
Sri Lanka were 125-0. They lost all 10 wickets for just 84 runs.
Nikesh Rughani
BBC Test Match Special commentator
Australia had their tails up from the moment they took that first wicket because they were not at the races before then.
They should definitely be fancying this chase now.
Asalanka c Labuschagne b Maxwell 25 (SL 209 all out)
That's that. Super fightback by Australia, awful collapse by Sri Lanka.
Charith Asalanka tries to take Glenn Maxwell down the ground, but finds Marnus Labuschagne at long-on. It's a good catch, considering the swirling wind.
Australia will need 210 to get their World Cup campaign up and running.
Rightly or wrongly, the action continues. It might be best for everyone if this innings is wrapped up quickly, then hope for the wind to abate during the interval.
Carlos Brathwaite
Ex-West Indies all-rounder on BBC Test Match Special
It is quite scary. You can see people rushing out of their seats and trying to get to the exit. The wind is picking up and blowing things everywhere.
It doesn't look safe.
It looks like a banner or two has come off the very top of the stand. Not heavy, but not ideal. Spectators in the front rows are all heading towards the back of the seating areas.
Nikesh Rughani
BBC Test Match Special commentator
The roof is literally coming off! This is getting quite dangerous now.
There is debris all over the ground.
Worrying. The high wind has just blown something off the stand. Everything has stopped for a moment.
Carlos Brathwaite
Ex-West Indies all-rounder on BBC Test Match Special
Shepherding the tail is a very skilful task for a top order batter. I'm not sure what Asalanka's thinking is, because he is turning down some singles but taking others and exposing Madushanka.
This is interesting. Asalanka wasn't keen on taking singles, then changes his mind, exposing Madushanka...
Australia are behind, so they ask Glenn Maxwell to sprint through the 42nd over, which he does in the blink of an eye. Just a single from it, meaning Asalanka has the strike to face Starc in the next over.
Phil Long
BBC Test Match Special statistician
Sri Lanka's collapse is now eight wickets for 47 runs.
Carlos Brathwaite
Ex-West Indies all-rounder on BBC Test Match Special
You do not want to be a number 11 batter facing Mitchell Starc at the best of times, let alone when there's a dust storm and you can't see.
Dilshan Madushanka arrives at number 11 just as a dust storm whirs around Lucknow. Not really what you need when you're facing Mitchell Starc.
Carlos Brathwaite
Ex-West Indies all-rounder on BBC Test Match Special
Image source, Getty ImagesFull, straight and hitting leg stump. It is classic Mitchell Starc, the toe-crusher.
That is too good for a number 10 and in fairness, deliveries like that have been too good for many top order batters for years now.
Kumara b Starc 4 (SL 204-9)
There is the ninth!
Play that, if you can. In fairness, a Mitchell Starc toe-crusher has done for many batter players than Lahiru Kumara. Think Ben Stokes at Lord's four years ago.
Bit of in-swing to the left-hander. Stumps everywhere.
Goodnight Vienna.
Thank you, Michael. This has been a disappointingly good fightback from Australia, hasn't it? Every little helps for Sri Lanka. New man Kumara inside edges Starc past his stumps for four. Could so easily have been the ninth wicket.
New batter Lahiru Kumara plays out four dots to close the over out.
Can Charith Asalanka drive Sri Lanka up to a vaguely defendable total? Or will Australia rapidly wrap this up?
Here's Stephan Shemilt to find out.
Geoff Lemon
BBC Test Match Special commentator
Image source, Getty ImagesAdam Zampa desperately needed this performance. He really struggled against India and South Africa with the dew.