Djokovic, Australian Open and Alexander Zverev

Djokovic, who retired due to injury after the first set, was booed by the crowd as he walked off Rod Laver Arena.
An injured Novak Djokovic quit because of a torn muscle in his left leg after dropping the first set of his Australian Open ...
Alexander Zverev urges fans not to boo Novak Djokovic, who retired in the Australian Open Semifinals due to injury ...
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.
And just as Djokovic had a couple of hurdles by the names of Roger Federer and Rafael Nadal to deal with, Sinner is not alone ...
"There has been a growing suspicion around Novak, due to his expressions or histrionics, casting doubt on the authenticity of ...