There are three American men aged 23 and under in the second week of a Grand Slam. That hasn't happened since 2003 ...

Learner Tien has become the youngest American man to reach the Australian Open’s third round since Pete Sampras in 1990.

Here is everything you need to know about Learner Tien vs. Lorenzo Sonego, including TV and streaming options for the match.

Jannik Sinner and Carlos Alcaraz are the face of tennis but the kids are coming and Brazilian wonderkid Joao Fonseca is ...

Learner Tien (No. 121) will meet Lorenzo Sonego (No. 55) in the Round of 16 at the Australian Open on Sunday,9.Sonego ...

Two of four American men still playing in Melbourne, Irvine native Tien, 19, and Aliso Viejo native Michelsen, 20, became ...

The 19-year-old Learner Tien became the youngest player since Rafael Nadal in 2005 to reach this stage of the men's singles ...

For the first time since 1990, two American men aged 20 and younger made the third round in Melbourne.

The 19-year-old American upset fifth-seeded Daniil Medvedev in a five-set Australian Open marathon that lasted nearly five ...