Staff Reporter.
Four-time Grand Slam champion Naomi Osaka has officially confirmed her split with Patrick Mouratoglou, bringing to an end their ten-month working relationship.
“Merci Patrick,” Osaka began her post, with a photo of her hitting a practice serve while he stands nearby. “It was such a great experience learning from you. Wishing you nothing but the best. You are one of the coolest people I’ve ever met and I’m sure I’ll see you around.”
The news comes three days after Osaka lost her second match at the DC Open and just before she begins competing in Toronto. The US Open, the year’s last major tournament and an event Osaka won twice, begins in New York on Aug. 24.
Osaka hired Mouratoglou — who was the longtime coach of Serena Williams — when she fired Wim Fissette shortly after her second-round exit at last year’s US Open.
She hasn’t been past the third round at a Grand Slam tournament since winning the 2021 Australian Open.
Osaka, who is currently world No. 51, will play Canadian qualifier Ariana Arseneault Monday in her first match at the Canadian Open.