Australian Open champion Naomi Osaka enjoyed her return to action for the first time since winning the Melbourne Slam, beating Australia's Ajla Tomljanovic 7-6(3) 6-4.
After receiving a first-round bye, Osaka twice recovered from a break down to beat the world number 77 in one hour and 38 minutes to continue her excellent run of form.
The 23-year-old has not lost in over a year, having also won the US Open for the second time in 2020.
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Osaka will next play Nina Stojanovic, who beat Yulia Putintseva 5-7 7-5 6-2, in the third round.
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"This is my first match since Australia, so I just really wanted to play well," Osaka said post-match.
"I think for me, today I served really well when I needed to.
"Unfortunately I got broken a couple of times, but I think when it really, really mattered, I was able to serve well, so I’m happy with that."
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