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 is set to undergo an MRI to determine the extent of her abdominal injury but notes that she is feeling positive that it is nothing more than a minor issue that won't prevent her from competing at the Australian Open.

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, but her exit left Tauson as the tournament's champion.

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 retired from the Auckland final in shocking and devastating scenes as the No. 7 seed was up by a set when she had to call a medical timeout and call it a day.

Naomi Osaka’s fitness for the Australian Open is in question after the four-time Grand Slam champion and suffered an apparent abdominal injury Sunday.