Japan's four-time Grand Slam winner Naomi Osaka is back on the tennis court for practice and has hinted that she is likely to return to action at next year's Australian Open.

Naomi, who left the tennis court after making a tearful exit from the US Open two months ago declaring she was taking a break due to mental health issues, announced her return to training in posts on social media that included photographs of her on a court in a foreign location with a racquet in her hand and wearing work-out apparel.