With the boos and whistles that greeted his premature departure from Rod Laver Arena doubtless still ringing in his ears, it ...

On Friday, Djokovic battled World No. 2 Alexander Zverev for 81 minutes in their semifinal match. However, Djokovic immediately retired after losing a 5-6 tiebreak in the first set.

A new racquet and a new mindset have propelled American Madison Keys into a maiden Australian Open final at the age of 29.