Warner hits unbeaten 89 for Australia - booed after reaching 50
Finch hammers 66 off 48 balls after Australia's pace bowlers dominate in Bristol
Afghanistan lost both openers for ducks after choosing to bat first
Najibullah top-scores with 51, sharing 83-run partnership with Gulbadin (31) for sixth wicket
Three wickets each for Cummins and leg-spinner Zampa
Adam Williams
BBC Sport at Bristol
This crowd desperately wants a wicket.
One Afghanistan fan down below us desperately tries to get some chants going while the players also have a half-appeal for a caught behind off Aaron Finch.
Nothing doing, both sides of the boundary rope, and this is all going Australia's way so far.
#bbccricket
Luke: Enjoying the Aussies repping the Norwich home kit at this Cricket World Cup.
Hamid Hassan is causing Australia all sorts of problems here.
He cuts Aaron Finch in half with an absolute jaffa before he fires one into the opener's ribs.
Finch looks less than comfortable against the pace.
Gulbadin Naib immediately puts a second slip in.
Hamid Hassan is bowling beautifully.
He forces an outside edge out of David Warner and it flies just wide of first slip and down to the boundary.
It would have been a regulatory take for second slip.
Geoff Lemon
BBC Test Match Special commentator
Aaron Finch has played much of his career as an ultra-aggressive opener but when he broke into the Test team, he really lost his form. More recently, the runs have returned but he's almost afraid to go hard for fear of getting out and as a result he's not scored his runs quite as quickly.
Finch's strike-rate in ODI cricket in 2016 was 94.1, in 2017 92.67, in 2018 89.47 and in 2019 82.87.
Here's how Aaron Finch hit Mujeeb Ur Rahman out of the attack.
Good comeback from Dawlat Zadran, conceding just a single off the remaining five deliveries.
Four.
Flat batted straight back past the bowler and umpire to the boundary.
That flew.
The Mujeeb experiment is over and Dawlat Zadran is into the attack.
He's started with a no-ball.
David Warner has a free-hit...
I did hear yesterday that there was free face painting at Trent Bridge, maybe he asked one of them to do it.
Geoff Lemon
BBC Test Match Special commentator
He does it himself, surely - he won't travel around with a make-up artist.
Graeme Swann
Ex-England spinner on BBC Test Match Special
Who paints the Afghan flag on Hassan's cheeks?
At the other end, Hamid Hassan has been impressive.
This time he draws a false shot from Aaron Finch that again gets the close fielders oohing and aahing.
Finch has an almighty slash at the final ball of the over and it flies down to the third man boundary.
Five from the over.
The experiment of Mujeeb Ur Rahman opening the bowling hasn't worked.
14 runs come from his second over and Australia have got off to a very good start.
Graeme Swann
Ex-England spinner on BBC Test Match Special
It's hard to bowl spin at this ground, especially with the new ball, because of how short the boundaries are.
Mujeeb is going to continue for Afghanistan.
Oh, Gulbadin Naib might wish he'd made a change now.
Aaron Finch continues where the first over ended by lofting the spinner over mid-on for six.
In case you're just joining us, Afghanistan were bowled out for 207 in 38.2 overs.
Here's the final wicket to fall.
Graeme Swann
Ex-England spinner on BBC Test Match Special
You have to keep the ball close to the stumps with David Warner - anything wide and he throws his hands at it.
That's a great start from Hamid Hassan - a maiden.
David Warner is VERY keen to avoid a run out based on the very, very loud shouts of 'wait on' and 'waiting' in that over.