There's been a stunner at the Australian Open, and it came from an American teenager. Qualifier and 19-year-old Learner Tien beat No. 5-ranked and three-time Australian Open finalist Daniil Medvedev ...

During the fourth set of his marathon Australian Open match against one of the world’s top tennis players, 19-year-old Learner Tien had just one thing on his mind. He desperately needed a bathroom ...

American teenager Learner Tien produced arguably the biggest shock of the Australian Open so far as he defeated last year’s runner-up Daniil Medvedev in five sets, 6-3, 7-6 (4), 6-7 (8), 1-6, 7-6 (7).

An intriguing clash awaits as American teenager Learner Tien faces Italy's Lorenzo Sonego in the Australian Open fourth round ...