Learner Tien, a Vietnamese American tennis player who is just 19 years old, has advanced to the fourth round of the ...

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

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

These answers may be terse, but they shouldn’t be mistaken for rudeness or thoughtlessness. Tien gets his point across, usually with a smile, and then shuts up. He seems to have the quiet focus of a ...

Monfils upset fourth-seeded Taylor Fritz of the United States 3-6, 7-5, 7-6 (1), 6-4 in the third round at Melbourne, ...

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

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

The 19-year-old from Irvine, California nearly lost a two-set lead from match point up but held off a late surge from a former world No. 1 to win the biggest match of his career.