Naomi Osaka Withdraws From the Australian Open

Naomi Osaka won just one match during the summer hardcourt swing in North America.Credit...Matthew Stockman/Getty ImagesNaomi Osaka, a four-time Grand Slam champion, has withdrawn from the Australian Open, the latest turn in an increasingly enigmatic career.

The Australian Open announced Osaka’s withdrawal on Sunday in Melbourne. Dayana Yastremska will now move into the main draw of the tournament, which starts Jan. 15.

Osaka, who won the Australian Open in 2019 and 2021, has not played a tournament since September, when she withdrew from a match in Japan with abdominal pain.

Once seemingly destined to compete for the biggest championships in tennis for the next decade, Osaka has struggled to…