Jannik Sinner heaps praise on Darren Cahill after winning the Australian Open.

Jannik Sinner heaps praise on Darren Cahill after winning the Australian Open.

Everyone knew Jannik Sinner was sick during his run to the Australian Open title, but his Australian coach has confirmed just how bad it was.

MELBOURNE, Australia (AP) — Of all the praise bestowed on Jannik Sinner after he won his second consecutive Australian Open championship, and third...

Jannik Sinner reached the Australian Open final after defeating Ben Shelton in the second semifinal, setting up a showdown with Alexander Zverev....

Jannik Sinner reached the Australian Open final after defeating Ben Shelton in the second semifinal, setting up a showdown with Alexander Zverev....

Just as Alexander Zverev was about to make his speech, the entire stadium’s attention was directed elsewhere.

Jannik Sinner successfully defended his Australian Open title, defeating Alexander Zverev 6-3, 7-6 (4), 6-3. Sinner, the world's top-ranked player,...

MELBOURNE: A clinical Jannik Sinner swept past Alexander Zverev to retain his Australian Open title on Sunday and cement his status as the world’s...