Former world No. 1 Naomi Osaka retired from the ASB Classic final in Auckland on Sunday due to an abdominal injury after winning the first set against Clara Tauson.

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.

Former world No. 1 Naomi Osaka started the new year on a high, reaching her first WTA Tour quarterfinal in six months with a 7-5, 6-3 win over Julia Grabher in Auckland.

Naomi Osaka has made her first WTA final in three years and she is a win away from lifting her first title as a mom. On Saturday, the seventh-seeded Japanese ousted world No. 82 Alycia Parks 6-4 6-2 in the semifinal of the WTA 250 tournament in Auckland.

Naomi Osaka started 2025 strong by playing some of her best tennis in years. In fact, she blew through the first few rounds of the Auckland Open to reach her first finals in almost three years. Sadly,

Osaka retired from the ASB Classic final in Auckland due to an abdominal injury. The four-time Grand Slam champion won the first set against Clara Tauson 6-4 before taking an immediate medical time-out that would signal the end of the match. Due to injury, Osaka has retired from the match. Clara Tauson is the champion with a final score of 4-6.

Naomi Osaka could possibly start her Auckland campaign by meeting two qualifiers but then it could also get significantly tougher for the four-time Grand Slam champion.