Naomi Osaka is into the second round of the US Open.
Mandatory Credit: Seth Wenig/AP via CNN Newsource
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Naomi Osaka records first top 10 win in more than four years to reach US Open second round
Naomi Osaka on Tuesday recorded her first win over a top 10 player in more than four years as she secured an emphatic 6-3 6-2 victory over Jelena Ostapenko in the first round of the US Open.
