Learner Tien, a 19-year-old, became the youngest American man since Pete Sampras to reach the Australian Open third round, beating Daniil Medvedev. The marathon match lasted nearly five hours. Tien's ...
Jannik Sinner and young tyro Learner Tien will look to reach the second week of the Australian Open on Saturday while the women's third round is headlined by Iga Swiatek taking on Emma Raducanu.
Learner Tien upset a fifth-seeded, racket-tossing Daniil Medvedev in the second round of the Australian Open, a five-setter that took nearly five hours.