At 19 years of age, Learner Tien becomes the youngest man to reach the Australian Open fourth round since Rafael Nadal.

Learner Tien and Alex Michelsen were born about 15 months apart and first crossed paths a decade ago when they were playing in Southern California tennis tournaments ...

MELBOURNE - Teenage qualifier Learner Tien became the youngest man to reach the Australian Open fourth round in 20 years as ...

Learner Tien, a 19-year-old qualifier from California, became the youngest American man to reach the Australian Open's third ...

The Irvine native and 19-year-old qualifier, who played one semester at USC, wins a 4-hour, 49-minute thriller that ends at ...

Daniil Medvedev is facing more fines from the Australian Open after failing to attend his post-match press conference after ...

Learner Tien celebrated his shock Australian Open victory over three-times runner-up Daniil Medvedev in true teenage fashion, ...

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

There are six American men and five American women in the third round. Tommy Paul, Coco Gauff and Jessica Pegula all play Thursday. No. 17 Frances Tiafoe, a two-time U.S. Open semifinalist, was upset ...

A teenager, Learnen Tien, came to Melbourne with a 0-3 score at Majors. The 19-year-old American qualified for the Australian ...