Osaka makes her return against Zheng at Tokyo Olympics
The second-seeded Osaka, who represents host Japan and is one of the top names at the Games, is returning to the competition after she withdrew from the French Open following the first round to take a mental health break.
Osaka holds a 2-1 career edge over Zheng.
The first seeded opponent that Osaka could face is No. 16 Kiki Bertens, who is playing the final tournament of her career. Iga Swiatek, the 2020 French Open champion, is a possible quarterfinal opponent for Osaka.
Djokovic is attempting to become the first man to complete a Golden Slam by winning all four major tennis tournaments and an Olympic singles gold medal in the same year.
Draws were held Thursday — two days before the play opens on the hard courts at Ariake Tennis Park.
Serena Williams and Simona Halep are also not playing.
Barty is also playing doubles with Storm Sanders.
The play begins on Saturday.
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