As per recent developments, Naomi Osaka and Patrick Mourtaglou will no longer be working together. The Japanese ace took to Instagram story to announce the split.

Naomi Osaka and coach Patrick Mouratoglou are done working together after less than a year, the four-time Grand Slam champion announced Sunday on social media. “Merci Patrick,” Osaka began her post, with a photo of her hitting a practice serve while he stands nearby.

Despite the split, Osaka’s message suggests that the decision was amicable and that she holds Mouratoglou in high regard.