Naomi Osaka plays a shot in her 3-6, 6-3, 6-1 win against Britain's Katie Boulter in the third round of the Gippsland Trophy in Melbourne on Feb. 3, 2021. (Kyodo)

TOKYO - Naomi Osaka overcame an early setback Wednesday before continuing her Australian Open warm-up in winning fashion, beating Britain's Katie Boulter 3-6, 6-3, 6-1 to advance to the quarterfinals of the Gippsland Trophy in Melbourne.