When 22-year-old Osaka beat Victoria Azarenka in the US Open final, she played with her left thigh wrapped.

"My hamstring muscles (the back thigh muscles) are still sore so I will not have enough time to prepare for the gravel."

The Japanese have not reached further than the third round of the French Open.

The tournament has been postponed this year as a result of the corona pandemic and the main tournament begins on September 27.

CLIP: Watch the match ball when Osaka won the US Open (September 13, 2020)

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Naomi Osaka beat Victoria Azarenka in the US Open.

Photo: Seth Wenig / AP / TT