Iga Swiatek continued her run through the Australian Open draw with a quarter-final win over Emma Navarro.
The Pole's 6-1 6-2 victory means she has lost just 14 games in five matches so far – a feat achieved by only Maria Sharapova, Monica Seles and Steffi Graf in the current format.
However, there was controversy after umpire Eva Asderaki-Moore failed to spot a double jump at a crucial moment in the fifth game of the second set.
Swiatek was under pressure for the first time in the match but won the game despite not being able to get to the short ball in time. Navarro protested but was denied a video review as she continued to play the point.
The American eighth seed did not win a single game, and Swiatek advanced to the semi-finals of Melbourne for the second time, where she will face Madison Keys.
The five-time Grand Slam champion entered the clash with Navarro having spent just four hours and 30 minutes on court compared to 10 hours and 14 minutes for her opponent, who had gone through three sets in each of her previous matches.
It didn't take long for Swiatek to take control and the second seed will be heavy favorite for her first Australian Open final.
Keys also achieved her best result here since reaching the semi-finals for the first time ten years ago.
The American won 10 in a row to start the season, and she defeated Elina Svitolina 3-6 6-3 6-4 from a set down.
Svitolina's steady play earned her the opening set, but Keys hit 37 winners in sets two and three combined as she imposed her power play.
“It feels great,” said the 29-year-old, whose best Grand Slam run was a 2017 US Open final appearance.
“I'm really, really proud of myself to be here in another semi-final and I'm hoping and looking forward to seeing if I can take it a step further.”
Swiatek expects a “tricky” semifinal against Keys
Swiatek, who has a 4-1 career record against Keys, said of the semifinal match: “Madison is a great player and really experienced, so you never know. The match I lost, she kind of killed me, so I I think it can be awkward.”
Although she's rarely associated with defense, patience or even much of a Plan B, Keys said she'd be cautious about being too aggressive against Swiatek.
“The biggest thing that makes it so hard to beat is because she moves so well, if you miss your spot just a little bit, she has enough time to recover and then the point goes back to neutral,” she said.
“So there's a balance between being aggressive and trying to get her going and going for something, but not pushing too hard and not going too fast.
“So I think she just does such a good job of making people go overboard too quickly.”
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