"I said twice I'm going to quit tennis," Donna Vekic confessed of her knee issues. Now she's in the AO quarterfinals.
Undefeated Aryna Sabalenka shares how she fixed her once volatile serve.
Stefanos Tsitsipas edged Jannik Sinner for the fifth time in six meetings to reach the AO quarterfinals for the fourth time in five years.
The American dropped out in straight sets and wasn't really sure what she could have done better.
"I felt that I don't want to lose instead of I want to win," world No. 1 said of Australian Open loss.
Alex de Minaur, the last Aussie standing, aims to topple nine-time AO champion Novak Djokovic.
Undefeated Aryna Sabalenka says stable state of mind crucial to winning her first Grand Slam title.
