Rivals reveal how Dominic Thiem has become a hard-court force.
Simona Halep sees Garbiñe Muguruza making a major ranking move.
Roger Federer gets candid about his AO loss and his future.
"I lost against a great opponent," said Rafael Nadal.
The men's and women's quarterfinals will be completed on Day 10, and there is doubles, mixed, juniors and wheelchair around the grounds as wello.
The Swiss matched his record for most match points saved in a victory on Tuesday in Melbourne.
"Nick Kyrgios can be No. 1 in the future easy," says Goran Ivanisevic.
