Switzerland's world number one Roger Federer has pulled out of next month's Japan Open and Shanghai Masters 1000.

The 28-year-old told organisers he was withdrawing to rest his body "after a physically challenging year".

"I decided to withdraw from both tournaments so that I can give my body a chance to rest, rehabilitate and fully recover," Federer added.

The Japan Open takes place between 5-11 October, while the Shanghai Masters begins the following week.

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