Naomi Osaka has dropped out of the women's top 10 for the first time since winning the 2018 US Open title.
The Japanese player, who is now 12th, withdrew from this year's French Open and missed Wimbledon to focus on her mental health.
Osaka also took a break from tennis in September after her defence of the US Open title was ended by Leylah Fernandez in the third round.
The Former world number one and a four-time Grand Slam winner, recently said she will return to tennis soon after getting the "itch" to play again.
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