Wimbledon champion Marketa Vondrousova moved a step closer to back-to-back grand slam titles by beating Peyton Stearns to reach the US Open quarter-finals.
The 24-year-old Czech, seeded ninth here two months after becoming the first unseeded woman to win at SW19, fell a set behind to Stearns.
But the American youngster, whose powerful forehand accounted for Britain’s Katie Boulter in round three, won just five more games as Vondrousova triumphed 6-7 (3) 6-3 6-2.
“She was playing great from the beginning and I just tried to stay in the game,” said Vondrousova.
“She is a very dangerous player, she has a great future ahead of her and it was a very tough match.
“I’m very happy. I didn’t expect this, after Wimbledon there was a lot of pressure but I’m feeling good and we’ll see what happens next.”
What happens next is a meeting with Madison Keys, a former Flushing Meadows runner-up who sprung a mild surprise against fellow American Jessica Pegula, the third seed.
Keys, seeded 17, is emulating the form which swept her to the final in 2017 and sunk the highly-fancied Pegula 6-1 6-3.
The 28-year-old said: “It’s always tough having to play a friend but we’ve been doing it all our lives. On court it’s all business but then we go back to being friends.”
Osaka beats Kostyuk for landmark win at Italian Open
Naomi Osaka recorded her first win over a top-20 opponent on clay at the Italian Open on Thursday, posting an impressive 6-3 6-2 victory against Marta Kostyuk to reach the third round.
Having opened her first Italian Open campaign since 2021 with a straight-sets win over Clara Burel on Wednesday, Osaka produced another slick performance to down the world number 20 one day later.
Osaka blitzed Kostyuk to take the opener in just 36 minutes, taking advantage of a sloppy start from the Ukrainian, who served at just 40 per cent in the first set and tallied 15 unforced errors.
The former world number one then forced a break within three games in the second set, only for rain to halt proceedings after she went 3-1 up.
She showed no signs of rustiness upon returning to the court, though, even responding to a late loss of serve with an immediate break back to tee up a third-round clash with 10th seed Daria Kasatkina.
Data Debrief: First for Osaka on least favourite surface
Osaka has never considered herself a clay-court specialist, failing to reach a single tour-level final on the surface throughout her career.
Ahead of Thursday's match, she was 0-8 on clay against opponents in the top 20 of the WTA rankings. However, a routine victory should give her hope of repeating the feat against Kasatkina next time out.
Nadal fights back to win opener in Rome
Rafael Nadal fought back from a slow start to defeat Belgian qualifier Zizou Bergs 4-6, 6-3, 6-4 in his opening match at the Italian Open.
Nadal endured a poor first set, losing five of the last six games, but turned things around in impressive style, spending two hours and 47 minutes on the court on Thursday.
The 10-time Italian Open champion saved all five break points he faced in the second and third sets to take key points and earn a seventh win of the season.
Nadal is competing in his third consecutive tour-level event after missing most of last year due to a hip injury that required surgery before his comeback was halted by a muscle tear in January.
"That was not my best match, I was practising better than I played today, but I found a way to win," he said after the match.
"That’s so important at the beginning of the tournament. My game is more unpredictable than before. I didn’t play much tennis for the last two years, so have some ups and downs, on and off, but I think I can do much better than today and I hope to do it next round."
The Spaniard will face seventh-seeded Hubert Hurkacz in the second round.
Data Debrief:
Nadal had only lost one of his previous 18 opening-round matches in Rome before Thursday and avoided adding to that tally in his final appearance at the tournament.
He has the most wins at the Foro Italico (70), where he first claimed the title on his debut in 2005.
Osaka makes winning return at Italian Open
Naomi Osaka claimed a straight sets victory over Clara Burel in the first round of the Italian Open.
Making her first appearance in Rome since 2021, former world number one Osaka prevailed 7-6 (7-2) 6-1 on Wednesday, marking her first win over a top-50 opponent on clay since she defeated Victoria Azarenka at Roland Garros in 2019.
Osaka, who is now ranked 173rd in the world by the WTA, will face Marta Kostyuk in the second round.
She previously faced Kostyuk in the 2020 US Open, en route to winning her third major title.
Data Debrief: Back with a bang
Osaka reached the quarter-finals of the Italian Open in 2019, but did not win a game in 2021 and has not appeared at any other edition since then.
That means the 26-year-old won her first match at the event since she beat Mihaela Buzarnescu in 2019 (1,819 days ago). She wrapped up the win in one hour and 24 minutes, finishing with 27 winners, including eight aces.
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