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

Giant-killing Alex Michelsen has pulled off a Pete Sampras-like feat to power into the Australian Open fourth round in ...

Young gun Alex Michelsen has achieved a 35-year American first with an inspired run to the Australian Open's last 16 at ...

American qualifier Learner Tien became the youngest man to reach the Australian Open fourth round in 20 years as he beat an ...

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