MELBOURNE, Australia (AP) — TikTok influencer and top-ranked Aryna Sabalenka is having to work her way through some rising teenager stars in her bid for a third Australian Open title in four years.

held off 19-year-old Vicky Mboko 6-1, 7-6 (1) at Rod Laver Arena on Sunday to advance to a quarterfinal match against 18-year-old

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