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,

Daniil Medvedev used his racket to smash a camera attached to the net during a tricky opening round win at this year’s Australian Open.

Learner Tien has stunned the tennis world, claiming an upset victory over Daniil Medvedev at the Australian Open.