Iga Swiatek loses World No.1 ranking after implosion leaves US Open in shock

The World No.1 was left absolutely shellshocked in New York.

Iga Swiatek walks off court and Swiatek reacts.
Jelena Ostapenko defeated World No.1 Iga Swiatek (pictured right) at the US Open having hit 30 winners. (Images: Channel Nine/Getty Images)

Jelena Ostapenko has delivered one of the biggest upsets of the US Open so far having knocked out World No.1 Iga Swiatek in brutal fashion. Swiatek had never defeated the Latvian on the tour and was looking to turn things around on Arthur Ashe Stadium having taken the first set in a strong start.

However, Ostapenko wasn't going to go down swinging and ramped up the pressure as she started to play more aggressively. Swiatek saw herself heading into a deciding set having been broken twice in the second.

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And tennis fans were left stunned when Ostapenko blasted Swiatek off the court in absolutely devastating fashion to win 3-6 6-3 6-1.

Swiatek had no answers to Ostapenko's power as the 21-year-old struggled to stop the onslaught on the main court. Ostapenko finished with 30 winners as Swiatek only narrowly avoided losing the set without winning a game in her late-night defeat.

The defending champion will now lose her World No.1 ranking after 75 weeks at the top of the sport. Aryna Sabalenka will become the new World No.1 regardless of her result going forward at the US Open.

Jelena Ostapenko celebrates.
Jelena Ostapenko (pictured) celebrates her win over Iga Swiatek at the US Open. (Photo by Robert Prange/Getty Images)

Swiatek was 50-0 in 2023 having taken the first set, meaning Ostapenko became the first player this year to win from a set down against the World No.1. Swiatek was quick to exit court after the defeat with the tennis world in disbelief at her inability to stop Ostapenko at Flushing Meadows.

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Ostapenko admitted after the match she knew her aggressive style would trouble the reigning champion having extended her record to 4-0 against the three-time grand slam winner.

"I always expected to have a battle against Iga. She is such a great player. She has won many slams," Ostapenko said in her on-court interview. "She is playing very, very consistent. But, when on court, I knew I just had to play my game and I have to be aggressive. Because that is what she doesn't really like.

"In the second and third set I began to step into the court and served better."

Iga Swiatek reacts with disappointment.
Iga Swiatek (pictured) will lose the World No.1 ranking having been knocked-out of the US Open. (Photo by COREY SIPKIN/AFP via Getty Images)

Ostapenko will now play American Coco Gauff in the quarter-final. Gauff overcame the challenge of veteran Caroline Wozniacki in three-sets in the round of 16. Ostapenko defeated Gauff at the Australian Open earlier in the year, but the American will have the crowd behind her in a blockbuster contest.

Swiatek's defeat means there will be a new winner of the US Open in 2023. Four Americans remain in the draw.

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