The crowd whistles and roars in anticipation.

Luciano Darderi gives them what they want. An ace.

More applause. They're giving the 22nd seed every bit of help they can.

Annabel Croft
Former British number one on BBC Radio 5 Sports Extra

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Swiatek's backhand is doing so much damage across the court. She gets such a great angle and comes outside the ball.

It took the breath away from Inglis, she didn't expect the ball to come through that quickly and immediately is put into a defensive position.

Luciano Darderi seems to have opted for entertainment in this third set.

He chases back and forth across the baseline, recovering two smashes before Jannik Sinner finally gets the better of him. Sinner's facial expression is beyond neutral.

A couple of first serves into Sinner's backhand give him a 30-15 lead. He motions eating the ball, much to the crowd's delight.

But Sinner quickly overturns the deficit, earning a break point with a backhand pass.

Maddison Inglis will be disappointed with that game.

The Australian qualifier managed to pull ahead at 0-30 with some really well-worked points before Iga Swiatek pulled things back for deuce, but then a backhand winner smacked straight down the court was enough to secure the service hold.

There's a lot of pressure on Inglis, who is the first Australian woman to reach the Australian Open fourth round since Ash Barty in 2022.

Can she get on the scoreboard here?

Annabel Croft
Former British number one on BBC Radio 5 Sports Extra

I wonder at what point does Inglis start to think if she is going to get up on the scoreboard in the first set?

The power that Swiatek is just motoring through the court with, Inglis can't live with it.

Jannik Sinner is cruising towards another love hold but smacks a forehand into the net for 40-15.

No matter. Ace number two of the game and number 16 of the match.

Iga Swiatek breaks at the first opportunity!

The Pole secures a break point at 30-40 after drawing Maddison Inglis out wide with a cross-court backhand and forcing her opponent to make the mistake.

Then she came out on top in a 16-shot rally to take the break.

She knows exactly what her job is today. She wants that fourth round spot.

Luciano Darderi nets a simple backhand. He responds with an ace down the T. Up and down, up and down. 15-all.

He finds another big serve for 40-15.

A rare forehand misfire from Jannik Sinner - only his second groundstroke unforced error on that side - secures the hold.

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Another rapid hold for Jannik Sinner.

Two more aces and a well-placed cross-court forehand passing shot are the highlights.

A very comfortable 40-0 service hold gets Iga Swiatek on the board.

Maddison Inglis just couldn't get to grips with the sheer power behind the Pole's serves there. She looked up to her coaching box a few times in pure disbelief.

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Double fault. Game and second set Jannik Sinner. The defending champion is cruising into the quarter-finals.

Although Luciano Darderi is struggling with injury, he's also lacked control on his groundstrokes and consistency with his serve while Sinner has been near-faultless.

12 aces, no double faults, and 23 winners to seven unforced errors.

Luciano Darderi lets out a volley of Italian after producing his 11th forehand unforced error of the match: 15-30.

However, he quickly regains his composure, finding success with his drop shot again to set up a forehand winner.

And then... double fault. Shoulders down. Break point.

Here we go then...

Iga Swiatek steps up to serve first in this fourth-round match.

She will be hoping for a much-improved performance today after squeezing past 31st seed Anna Kalinskaya with an error-strewn performance on Saturday.

She also racked up 34 unforced errors in her first-round match against Chinese qualifier Yuan Yue.

Ace. 15-0.

Ace. 30-0. Luciano Darderi stands with his arms outstretched.

Ace. 40-0. Darderi smiles in disbelief.

He finally gets a racquet on one and uses his booming forehand to force an error from Jannik Sinner. 40-15.

Normal service resumes. Ace. Game.

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Maddison Inglis has already spent plenty of time out on court at Melbourne Park this year.

The 28-year-old rallied to a 7-6 (8-6) 6-7 (9-11) 6-4 first-round victory over fellow Australian Kimberly Birrell in three hours and three minutes.

Inglis also needed three sets to defeat Germany's Laura Siegemund 6-4 6-7 (3-7) 7-6 (10-7), spending another three hours and 23 minutes out on court in her second-round match.

Luckily her third-round opponent Naomi Osaka was forced to withdraw from the tournament last week, giving her time to rest before taking on world number two Iga Swiatek.

Luciano Darderi isn't moving well. He keeps looking to his box and muttering, appearing to indicate an issue with his left leg.

He manages to complete the hold to 30 in stylish fashion - using a well-disguised drop shot to tee up a volley winner and finishing with an ace - before heading to his chair.

The umpire was on the phone during the game, likely summoning the physio, but Darderi holds off on receiving treatment for the time being.

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The small matter of 166 places separate Iga Swiatek and Maddison Inglis in the WTA rankings.

Swiatek, the second seed, is a six-time major champion and two-time Australian Open semi-finalist who will complete the career Grand Slam if she wins this tournament.

Inglis, by contrast, is the world number 168 and had to come through three rounds of qualifying and two three-set victories to reach round three before receiving a walkover win over injured 16th seed Naomi Osaka.

The 28-year-old from Perth, playing in the singles main draw at a Grand Slam for the first time since 2022, is the last Australian standing in the women's event.

Should she triumph on Rod Laver Arena, it would not only be the biggest win of her career but the biggest upset of the tournament so far.

Short points. Backhand winner, forehand winner, forehand winner (this one a teasing cross-court drop shot from the back of the court). Jannik Sinner races to 40-0.

Luciano Darderi brings it back to 40-30 as Sinner misses a forehand before being stretched too far by a backhand passing shot.

However, there's still no real danger of him being broken back.

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World number two Iga Swiatek and Australian qualifier Maddison Inglis have just stepped out on Rod Laver Arena.

Swiatek will be hoping to continue her hunt for a career Grand Slam by reaching her 14th quarter-final at a major, while Inglis will be hoping to cause an upset after reaching the fourth round of a major for the first time in her career.

There are 166 ranking places between the pair.

Luciano Darderi is in danger of boiling over here. He's cutting a frustrated figure and to be honest, he's frustrating to watch.

One minute, his forehand is completely wild. The next, he's constructing a good point to manoeuvre Jannik Sinner out of position and bludgeoning a ferocious winner

He manages to hold to 15 to keep himself within touching distance of Sinner, who has an early break.