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Coach's Corner

Naomi Osaka splits with Patrick Mouratoglou: “Such a great experience”

The former No. 1 had been working with the former coach of Serena Williams since last fall.

ByBaseline Staff

Published Jul 27, 2025

Naomi Osaka on coach Patrick Mouratoglou: "Maybe we should do a powwow about the things that he says"

Naomi Osaka is moving on. The former world No. 1 announced on Sunday that she and coach Patrick Mouratoglou have ended their coaching relationship after less than a year.

"Merci Patrick," Osaka wrote in an Instagram story three days after losing to 2021 US Open champion Emma Raducanu in the second round of the Mubadala Citi DC Open.

"It was such a great experience learning from you. Wishing you nothing but the best. You're one of the coolest people I've ever met and I'm sure I'll see you around."

Osaka and Mouratoglou started working together in September of last year, after Osaka hired him to replace Wim Fisette—the coach who she rehired upon returning to tennis following the 2023 birth of her first child. But Osaka's tenure with Mouratoglou failed to see the sustained highs that either player or coach may have hoped for, with injuries playing a part.

Read more: Lindsay Davenport: “Something has to change” in Naomi Osaka comeback

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Osaka’s short tenure with Mouratgolou was marked by ups-and-downs in her results.

Osaka’s short tenure with Mouratgolou was marked by ups-and-downs in her results.

In January, Osaka reached the final of the ASB Classic in Auckland but retired from the final against Clara Tauson. The same injury forced her to retire at the Australian Open.

At Mouratoglou's urging, Osaka dropped down a level of competition to win a WTA 125 in Saint-Malo, France during the clay-court season and won it—her first trophy since giving birth—and posted an eight-match winning streak on her least favorite surface. But since then, she has gone 3-5.

The four-time Grand Slam champion admitted this spring to feeling as if she was falling short of expectations.

"I hate disappointing people. ... I was thinking just now that he goes from working with like the greatest player ever to like, what the f--- this is," she said after losing to Paula Badosa in the first round of Roland Garros in May.

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Osaka is 21-11 this season, and is currently ranked No. 51. She'll return to action on the heels of her latest coaching news at the WTA 1000 in Montreal next week, and will face Canadian qualifier Ariana Arseneault in the first round.