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.

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.

Eighth-seeded Alex Michelsen survived a 6-7 (8), 6-4, 6-2 challenge from Indian qualifier Sumit Nagal on Monday to reach the second round of the ASB Classic in Auckland, New Zealand.

Sumit Nagal, who made the main draw after winnnig two qualifying matches, lost to world no.41 Alex Michelsen 7-6 (10-8), 4-6, 2-6.

India's Sumit Nagal bowed out of the men's singles opening round at the Auckland Open ATP 250 event following a 7-6 (10-8), 4-6, 2-6 loss to Alex Michelsen on Monday. Nagal, who had entered the main draw of the competition,