Naomi Osaka’s run at the 2025 Australian Open came to an end in the third round due to an injury.

The two-time Aussie Open champ suffered a strained abdominal muscle that caused her to retire after her first set against Belinda Bencic on Friday.

Full women’s singles bracket available via AusOpen.com.

Speaking to reporters afterward, Osaka explained abdominal injuries have been a frequent problem throughout her career and this one has been lingering since October during a tournament in Beijing.

“I kind of have a history of it, since I was a teenager,” she said. “At least once a year, I’d get an ab strain. For me, I want to say it’s more the way my serve is—it’s quite explosive. Unfortunately, it carried on over to the beginning of this season.”

There were indications leading up to the Australian Open that Osaka might be less than 100 percent. She had to withdraw from the final of a WTA event in Auckland earlier this month with an apparent abdominal injury.

Osaka, who was unseeded in the tournament, won her first two matches in three sets. She upset No. 20 Karolína Muchová in the second round to set up her showdown with Bencic.

Despite the abrupt exit because of an injury, Osaka had her best showing at the Australian Open since 2022. The 27-year-old didn’t play in 2023 after announcing she was pregnant with her first child days before the tournament began. She lost to Caroline Garcia in the first round last year.

Osaka won the Australian Open in 2019 and 2021. The 2019 victory elevated her to No. 1 in the WTA rankings for the first time in her career. She also has two U.S. Open titles on her resume in 2018 and 2020.