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Learner Tien stunned Daniil Medvedev with a dominant 6-4, 6-0, 6-3 victory in the Australian Open 2026 fourth round, marking his first Grand Slam quarterfinal. The 20-year-old American's fearless shot-making dismantled the three-time finalist, announcing his arrival on the big stage. Watch all highlights from Australian Open 2026, only on Sony LIV.
