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.
Novak Djokovic and Andy Murray concur on a simple schedule shift to prevent 4 a.m. finishes.
American depth is being showcased on the men's side in Melbourne.
The American has all the tools, and is working on his mental game to match.
