Barbora Krejcikova of the Czech Republic celebrates after defeating Victoria Azarenka of Belarus in their fourth round match at the Australian Open tennis championships in Melbourne, Australia.
Barbora Krejcikova, left, of the Czech Republic is congratulated by Victoria Azarenka of Belarus following their fourth round match at the Australian Open tennis championships in Melbourne, Australia.
Rafael Nadal of Spain celebrates after defeating Adrian Mannarino of France in their fourth round match at the Australian Open tennis championships in Melbourne, Australia.
Adrian Mannarino, left, of France walks from Rod Laver Arena following his fourth round loss to Rafael Nadal of Spain at the Australian Open tennis championships in Melbourne, Australia.
Ash Barty of Australia gestures as she is interviewed following her win over Amanda Anisimova of the U.S. in their fourth round match at the Australian Open tennis championships in Melbourne, Australia.
Amanda Anisimova of the U.S. walks from Rod Laver Arena following her fourth Rond loss to Ash Barty of Australia at the Australian Open tennis championships in Melbourne, Australia.
Matteo Berrettini of Italy celebrates after defeating Pablo Carreno Busta of Spain in their fourth round match at the Australian Open tennis championships in Melbourne, Australia.
Pablo Carreno Busta of Spain reacts during his fourth round match against Matteo Berrettini of Italy at the Australian Open tennis championships in Melbourne, Australia.
Jessica Pegula of the U.S. celebrates after defeating Maria Sakkari of Greece in their fourth round match at the Australian Open tennis championships in Melbourne, Australia.
Maria Sakkari of Greece reacts after losing a point to Jessica Pegula of the U.S. during their fourth round match at the Australian Open tennis championships in Melbourne, Australia.
Denis Shapovalov of Canada celebrates his win over Alexander Zverev of Germany in their fourth round match at the Australian Open tennis championships in Melbourne, Australia.
Alexander Zverev of Germany waves as he leaves the court following his fourth round loss to Denis Shapovalov of Canada at the Australian Open tennis championships in Melbourne, Australia.
Gael Monfils of France celebrates after defeating Miomir Kecmanovic of Serbia in their fourth round match at the Australian Open tennis championships in Melbourne, Australia.
Miomir Kecmanovic of Serbia makes a forehand return to Gael Monfils of France during their fourth round match at the Australian Open tennis championships in Melbourne, Australia.
