World No. 5 Daniil Medvedev has been fined more than US$76,000 for two separate incidents which occured during his first and ...

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 ...

The Russian champion - who reached three finals at Melbourne Park - played a really fluctuating match against 19-year-old ...

The 19-year-old American Learner Tien secured the biggest win of his young career in taking down No. 5 Daniil Medvedev ...

Built looks to build on his Kentucky Derby credentials Saturday in New Orleans; two of December's heros return to Group 1 action in Hong Kong.

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 ...

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 ...