American qualifier Learner Tien shocked the tennis world on Thursday when he upset last year's Australian Open runner-up Daniil Medvedev in a nearly five-hour, five-set match in the second round.
Tien took an early two-set lead (6–3, 7–6) before dropping the next two sets to Medvedev (6–7, 1–6). The final set went into a tiebreak, with the 19-year-old capturing a 10–7 win in the tiebreak. The match lasted four hours and 49 minutes into the early hours of Friday morning in Melbourne at Margaret Court Arena.
