It's hard to watch the way Jannik Sinner plays tennis and not think of Novak Djokovic. Of all the praise bestowed on Sinner ...

Jannik Sinner, right, of Italy holds the Norman Brookes Challenge Cup after defeating Alexander Zverev of Germany in the ...

Alexander Zverev said that Jannik Sinner is as good as Novak Djokovic at his peak and on "a different universe" after the ...

Novak Djokovic retired injured from his Australian Open semifinal against Alexander Zverev on Friday and left the court to ...

MELBOURNE - Alexander Zverev played his best tennis when it mattered most to down Tommy Paul 7-6(1) 7-6(0) 2-6 6-1 on Tuesday ...