Learner Tien, 19, became the youngest American man to reach the Australian Open's third round since Pete Sampras in 1990.

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

Fonseca has long looked like a star-in-waiting. Under pressure in his first Grand Slam set, he delivered beyond those lofty ...

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 ...

Ruthless defending champion Jannik Sinner was in the zone Saturday as he powered into the last 16 of the Australian Open with ...

Learner Tien has become the youngest American man to reach the Australian Open’s third round since Pete Sampras in 1990. Tien is a 19-year-old qualifier from California who upset fifth-seeded ...

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

MELBOURNE, Australia — In the fog of his 150mph serves, his seemingly limitless athleticism and his frightening forehand, it ...

Qualifier Learner Tien shocked fifth-seeded Daniil Medvedev 6-3, 7-6(4), 6-7(8), 1-6, 7-6(10-7) to battle into his maiden ...

Joao stormed over the qualifying field and gained even more confidence. The young gun faced world no. 9 Andrey Rublev in the ...

Andre Agassi once drew a comparison between how Pete Sampras and Roger Federer's abilities had evolved over the years. The eight-time Grand Slam champion made the remarks after his devastating ...