Four-time Grand Slam champion Naomi Osaka says she and her partner, rapper Cordae, “are no longer in a relationship.” Osaka posted the news on social media Monday, less than a week before the Australian Open tennis tournament begins.

Naomi Osaka’s fitness for the Australian Open is in question after the four-time Grand Slam champion and former No. 1 suffered an apparent abdominal injury while playing the final of a WTA tournament in Auckland.

The former world No. 1 and four-time Grand Slam champion retired from the final of the WTA Auckland Open, the last tune-up before the Australian Open, with an apparent medical issue on Sunday. She had been leading Denmark's Clara Tauson 6-4 before her exit left Tauson as the tournament's champion.