So, another day in the World Cup and one more quarter-final spot filled. The knockout stages are starting to take shape.

New Zealand, who were already through, beat Afghanistan by six wickets in Napier to claim a fifth straight win and finish top of Pool A, while Australia made significantly harder work of beating Sri Lanka.

Can England join them in the last eight? Join us at 03:00 GMT on Monday to find out if they can beat Bangladesh in Adelaide. Anything but a win will send them out...

Australia beat Sri Lanka by 64 runs

Australia 379-9 (50): Maxwell 102 (53), Smith 72, Clarke 68, Watson 67

Sri Lanka 312 all out (46.2): Sangakkara 104, Chandimal 52 retired hurt; Faulkner 3-48

Fall of wickets: 5-1 (Thirimanne 1), 135-2 (Dilshan 62), 188-3 (Jayawardene 19), 201-4 (Sanagkkara 104), 281-4* (Chandimal retired hurt 52), 283-5 (Mathews 35), 193-6 (Perera 8), 305-7 (Prasanna 9), 307-8 (Tharanga 4), 312-9 (Senanayake 7)

Bowling figures: Starc 8.2-0-29-2, Johnson 9-0-62-2, Watson 7-0-71-1, Doherty 7-0-60-0, Maxwell 6-0-35-0, Faulkner 9-0-48-3

Australia won toss

Full scorecard

Image source, Getty Images

Vic Marks
Ex-England spinner on BBC Test Match Special

"Sri Lanka will be desperate to get Chandimal fit again. They play Scotland next, although they made a meal of beating Afghanistan. He maybe won't play in that one but they will want him available for the quarter-final because he almost won it for them here. You want those types of players."

Sri Lanka captain Angelo Mathews on Kumar Sangakkara, who scored a record third successive World Cup century: "He's brilliant. He's ageing and he's getting better and better.

"We've got to improve in our bowling and fielding. If we can keep the opposition to 300, we can chase it down."

Australia captain Michael Clarke: "Credit to the boys for the way they battled - Maxwell scoring his first ODI hundred, we needed his runs today.

"If we can hold our nerve like that we give ourselves a chance. Watching players around the world scoring so quickly and freely, teams can chase any score now.

"Starc's execution has been excellent with both the new ball and the old."

Image source, Getty Images

Where does that leave Sri Lanka? They are not assured of a place in the quarter-finals yet, although, with only Scotland to play, you can't see them not claiming the one win they need.

Indeed, if Bangladesh beat England in Adelaide on Monday, Sri Lanka will join New Zealand, Australia and Bangladesh in the last eight from Pool A.

Sri Lanka captain Angelo Mathews: "We conceded 200 runs in the last 16 overs ands it was way too much.

"340 would have been a real good chase. We had to go for it; we had to take those chances.

"It was a real good effort by the batters but we couldn't hold on."

Australia's Glenn Maxwell, who scored a 51-ball century: "It was a massive game for us. I didn't know about the record World Cup century (50 balls), but I knew about the Australian record (57 balls) because James Faulkner doesn't shut up about it. We've got a few days off now, we'll refresh physically and mentally."

Image source, AFP

Vic Marks
Ex-England spinner on BBC Test Match Special

"For the Aussies, mission accomplished. If Maxwell is not man of the match then something is wrong. It was his innings that turned the match. Maxwell produced one of his specials and really put them out of sight from the Sri Lankans."

But the match was effectively settled by Glenn Maxwell, who smashed 102 off 53 balls - his first ODI century, the fastest by an Australian and the second quickest in World Cup history.

Give it a couple of weeks and I doubt many will remember Steve Smith's 72 and Michael Clarke's 68, however well they batted.

Mitchell Starc finished with 2-29 off 8.2 overs - mightily impressive figures in a game which saw 688 runs - while James Faulkner took 3-48 and Mitchell Johnson 2-62.

Image source, AP

Sangakkara's 104 off 107 balls for Sri Lanka was typically brilliant, while Tillakaratne Dilshan weighed in with 62, and Dinesh Chandimal's excellent 52 off 24 balls deserves more than a passing mention.

However, after Chandimal retired hurt in the 42nd over, with 96 needed, Sri Lanka lost their last five wickets for 29 runs.

Vic Marks
Ex-England spinner on BBC Test Match Special

"Well, 64 runs is quite a big margin. For a while it looked like it would be closer than that. There was a glimmer of hope for Sri Lanka and it's the hope that kills you.

"The Aussies are in the quarter-finals. I think Sri Lanka are also there but we can't say it with mathematical certainty.

As it is, Australia survive a superb Sri Lanka rally to go through to the quarter-finals with a third win in five games. New Zealand will finish top of Pool A too.

A valiant chase. And a belter of a game that was in doubt until the final few overs.

Image source, AP

That's it. Game over. Starc is simply too good for Senanayake, who chips one to mid-off. With Chandimal not batting again, Sri Lanka's innings is over.

Vic Marks
Ex-England spinner on BBC Test Match Special

"Well it is always liable to happen as the run rate gets higher and higher and you have to go for the big shot when you are not ready to do so. Tharanga swung and hoped.

"It's all over bar the shouting. Sri Lanka are not yet qualified technically, but I think they are almost there."

Australia's main priority now is upping the over rate. They're scampering round like scolded schoolboys between balls and overs. It wasn't so long ago they were worrying about being on the wrong end of the highest successful chase in World Cup history.

They're dropping like flies now. Tharanga this time, pulling Faulkner straight to deep mid-wicket, where Warner gets a spot of catching practice. Australia one wicket from victory - if Chandimal doesn't return to bat.

Image source, AFP

Sachithra Senanayake joins Upul Tharange at the crease. It doesn't look like we'll be seeing Dinesh Chandimal again.