The burly Czech had knocked off Federer at this stage of a major twice before.
The world No. 7 announced the news on social media, ending a partnership that produced two major titles.
"Just being on the court with her, I was in a nice place," Kyrgios says of Tomljanovic.
"People need to understand that if I dive, it's because I know I can dive," Monfils said.
Azarenka, Murray, Ferrer, and more gave us quotable quotes on AO’s eighth day.
The two-time Aussie champ says she was nervous before her match because she was worried about the Broncos.
Defying gravity was a painful proposition for Gael Monfils.