Postpublished at 08:43 Greenwich Mean Time
Lys 0-6 0-0 Swiatek*
Britain's Emma Raducanu only managed to win one game against Iga Swiatek in the last round.
Can Eva Lys match or better that to avoid the dreaded 'double bagel' scoreline?
Summary
Day nine of Australian Open
Alex de Minaur into quarter-finals with 6-0 7-6 (7-5) 6-3 win over Alex Michelsen
Novak Djokovic receives apology from Australian broadcaster for on-air remarks
Britons Henry Patten, Julian Cash and Lloyd Glasspool into men's doubles quarter-finals
Postpublished at 08:43 Greenwich Mean Time
Game and first set - Swiatekpublished at 08:42 Greenwich Mean Time
Lys 0-6 0-0 Swiatek*
Iga Swiatek misses the first set point, but the second seed immediately brings up another and this time she gets it - fizzing a forehand past Eva Lys.
A 24-minute masterclass in ruthlessness from Swiatek.
Image source, Getty Images'There are a few little fist pumps coming from Lys'published at 08:40 Greenwich Mean Time
*Lys 0-5 Swiatek
Annabel Croft
Former British number one on BBC Radio 5 Live and BBC SoundsI think Eva Lys has definitely got this crowd behind her. They seem to have taken her to their hearts.
There are a few little fist pumps coming out from Eva Lys, who is hanging in here for this game.
Set point Swiatekpublished at 08:39 Greenwich Mean Time
*Lys 0-5 Swiatek
Eva Lys adds a bit more firepower to her hitting and it forces Iga Swiatek to net the first point.
The world number 128 defends brilliantly on the next one, but she eventually runs out of steam as Iga Swiatek slams dunks an overhead.
There are 'ooohs' from the crowd and a wry smile on Lys' face as her shot misses the line by a hairs' breadth and hands Swiatek another break point.
Shelton takes third set against Monfilspublished at 08:37 Greenwich Mean Time
*Monfils 6-7 (3-7) 7-6 (7-3) 6-7 (2-7) 0-0 Shelton
Image source, Getty ImagesAmerican 21st seed Ben Shelton has taken the third set against Gael Monfils, making the most of his four set points in the tie-break.
Monfils, 38, was moving gingerly through that tie-break and Shelton took advantage to overpower the Frenchman.
The crowd are currently being treated to Sweet Caroline while Monfils takes an off-court break.
Swiatek holdspublished at 08:35 Greenwich Mean Time
*Lys 0-5 Swiatek
A clenched fist from Eva Lys as her forehand winner postpones another service hold for Iga Swiatek.
But the second seed gets it done after Lys overhits a backhand.
The lucky loser will have to hold serve here if she is to avoid a first-set bagel.
Postpublished at 08:32 Greenwich Mean Time
Lys 0-4 Swiatek*
This may be the biggest match of Eva Lys' career, but this is also a pretty huge deal for Iga Swiatek.
The Australian Open hasn't been a happy hunting ground and the second seed from Poland hasn't reached the quarter-finals in Melbourne since 2022.
Swiatek goes double break uppublished at 08:31 Greenwich Mean Time
Lys 0-4 Swiatek*
A little hop of frustration from Eva Lys as her serve is swamped by Iga Swiatek and she plants into the net.
Swiatek is ruthless as she continues to attack and she gets her reward with another break.
Image source, Getty Images'Lys is standing up to the pace'published at 08:27 Greenwich Mean Time
*Lys 0-3 Swiatek
Annabel Croft
Former British number one on BBC Radio 5 Live and BBC SoundsEva Lys is really going after her shots.
She is standing up to the pace that Iga Swiatek is hitting at her.
As we all know, Swiatek puts a lot of rotation on the ball but Lys looks pretty comfortable with it so far.
Swiatek holdspublished at 08:27 Greenwich Mean Time
*Lys 0-3 Swiatek
Eva Lys manages a smile as she claws a point back on Iga Swiatek's serve, but she follows that up with two misses to gift the five-time major winner an easy hold.
Image source, Getty ImagesSwiatek breakspublished at 08:25 Greenwich Mean Time
Lys 0-2 Swiatek*
After a tricky first service game, Iga Swiatek pounces to get the early break.
Eva Lys fires wide and she's on the backfoot almost immediately in this fourth-round tie.
Break points Swiatekpublished at 08:24 Greenwich Mean Time
*Lys 0-1 Swiatek
It may be the biggest match of Eva Lys' career, but this is also a pretty huge deal for Iga Swiatek.
The second seed from Poland hasn't reached the quarter-finals in Melbourne since 2022.
She's got two break points of her own now.
Monfils and Shelton into third tie-breakpublished at 08:23 Greenwich Mean Time
Monfils 6-7 (3-7) 7-6 (7-3) 6-6 (0-0) Shelton*
Image source, Getty ImagesGael Monfils and Ben Shelton are treating the crowd at Margaret Court Arena and there is little between them at the moment.
The pair are about to go into their third tie-break of the match.
Swiatek fends off break points to holdpublished at 08:22 Greenwich Mean Time
*Lys 0-1 Swiatek
Iga Swiatek gets the hold with a forehand winner, but that wasn't easy.
A positive start for Eva Lys. Let's see what she can do on serve now.
Deuce on Swiatek's servepublished at 08:19 Greenwich Mean Time
Lys 0-0 Swiatek*
Eva Lys pushes her first break point long, and does the same with the second. Deuce.
Break points Lyspublished at 08:18 Greenwich Mean Time
Lys 0-0 Swiatek*
OK! What a start this would be for Eva Lys.
The German lucky loser has got herself two break points against second seed Iga Swiatek.
Postpublished at 08:16 Greenwich Mean Time
Lys 0-0 Swiatek*
Here we go! The biggest match of Eva Lys' career.
Iga Swiatek serves first to get us under way on Rod Laver Arena.
'No sign of any nerves whatsoever'published at 08:15 Greenwich Mean Time
Lys v Swiatek
Annabel Croft
Former British number one on BBC Radio 5 Live and BBC SoundsI'm watching Eva Lys warm-up here and there is no sign of any nerves whatsoever.
She has come out, she is free-swinging and she is middling every single ball. She has got wonderful techniques and really good control of that racquet face on the ball.
If her warm-up is anything to go by, she is striking the ball really beautifully.
Navarro takes first set against Kasatkinapublished at 08:13 Greenwich Mean Time
Navarro 6-4 0-1 Kasatkina*
Image source, Getty ImagesAmerican eighth seed Emma Navarro has taken the first set 6-4 against Russian ninth seed Daria Kasatkina.
Kasatkina has responded well though, securing an early break at the start of the second set.
The pair are bidding to reach the quarter-final stage for the first time in Melbourne.
Who is lucky loser Lys?published at 08:11 Greenwich Mean Time
Lys v Swiatek
Image source, Getty ImagesEva Lys has made history at the Australian Open by becoming the first women's singles lucky loser to reach the fourth round in the Open era.
The German, ranked 128th in the world, came from a set down to beat Romania's Jaqueline Cristian 4-6 6-3 6-3 on Saturday.
Earlier this week, the 23-year-old had her flight home booked after losing in the final round of qualifying, before being given a spot in the main draw following Anna Kalinskaya's withdrawal.
"It's an insane story, how fast it happened. Those days have totally changed my life," said Lys.
You can more about her remarkable week in Melbourne here.