Learner Tien, a 19-year-old qualifier from California, became the youngest American man to reach the Australian Open's third round since Pete Sampras in 1990, upsetting Daniil Medvedev in five sets Thursday.

Learner Tien stunned 5th seed Daniil Medvedev in five sets at the 2025 Australian Open on Thursday. The 2nd-round match at the Margaret Court Arena saw Medvedev suffer a shocking defeat. Tien stunned the three-time Australian Open finalist 6-3, 7-6, 6-7, 1-6, 7-6.

Daniil Medvedev was handed some hefty fines for his actions at this year's Australian Open. He was fined $10,000 for banging his racket against the net and damaging a camera in the process, then he was fined $66,

Daniil Medvedev has been fined a total of $76,000 for his camera and racket smashing outbursts during the first two rounds of the Australian Open.

Daniil Medvedev earned A$200,000 (roughly £102,000) for reaching the second round of the 2025 Australian Open, but most of that money will go back to organisers as he has been hit with a staggering fine for a couple of offences during his two matches.