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Australian Open: In a showdown between former Grand Slam champions, No.4 seed Elena Rybakina of Kazakhstan held off Latvia's Jelena Ostapenko 6-7(6), 6-2, 6-4 on Wednesday to make the Round of 16 at the Cincinnati Masters.

Last year's Wimbledon champion Rybakina took 2 hours and 17 minutes to pull off the come-from-behind victory on Wednesday night and edge ahead 3-2 in her head-to-head with 2017 Roland Garros titlist Ostapenko.