Qualifier and 19-year-old Learner Tien beat No. 5-ranked and three-time Australian Open finalist Daniil Medvedev in a five-set thriller 6-3, 7-6 (4), 6-7 (8), 1-6, 7-6 (7) for the biggest win of ...

Learner Tien, a 19-year-old ... American man to reach the Australian Open's third round since Pete Sampras in 1990, upsetting a racket-tossing Daniil Medvedev 6-3, 7-6 (4), 6-7 (8), 1-6, 7-6 ...

MELBOURNE, Australia -- Learner Tien ... American man to reach the Australian Open's third round since Pete Sampras in 1990, upsetting a racket-tossing Daniil Medvedev 6-3, 7-6 (4), 6-7 (8 ...

After the shock Australian Open second-round defeat, Daniil Medvedev failed to go beyond the second round of the Rotterdam ...

Daniil Medvedev has split with Gilles Simon weeks after suffering a shock defeat to a teenage qualifier. The world No. 7 was ...

Daniil Medvedev has addressed fears that he could retire from tennis after suffering another brutal defeat. The second seed ...