Australian Open Day 2, Live Photo - See The Best Photos From Melbourne

Jannik Sinner of Italy waves after defeating Nicolas Jarry of Chile in their first round match at the Australian Open tennis championship in Melbourne, Australia

Stefanos Tsitsipas of Greece plays a backhand return to Alex Michelsen of the U.S. during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Alex Michelsen of the U.S. plays a forehand return to Stefanos Tsitsipas of Greece during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Stefanos Tsitsipas of Greece walks to receive serve from Alex Michelsen of the U.S. during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Coco Gauff, left, of the U.S. is congratulated by compatriot Sofia Kenin following their first round match at the Australian Open tennis championship in Melbourne, Australia.

Coco Gauff of the U.S. waves after defeating compatriot Sofia Kenin in their first round match at the Australian Open tennis championship in Melbourne, Australia.

Sofia Kenin of the U.S. reacts during her first round match against Coco Gauff of the U.S. at the Australian Open tennis championship in Melbourne, Australia.

Coco Gauff of the U.S. plays a backhand return to Sofia Kenin of the U.S. during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Frances Tiafoe of the U.S. celebrates after defeating Arthur Rinderknech of France in their first round match at the Australian Open tennis championship in Melbourne, Australia.

Jessica Pegula of the U.S. serves to Maya Joint of Australia during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Belinda Bencic of Switzerland celebrates after defeating Jelena Ostapenko of Latvia in their first round match at the Australian Open tennis championship in Melbourne, Australia.

Andy Murray, coach of Novak Djokovic of Serbia watches him during his first round match against Nishesh Basavareddy of the U.S. at the Australian Open tennis championship in Melbourne, Australia.

Novak Djokovic of Serbia plays a forehand return to Nishesh Basavareddy of the U.S. during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Carlos Alcaraz of Spain plays a backhand return to Alexander Shevchenko of Kazakhstan during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Nick Kyrgios of Australia prepares to serve to Jacob Fearnley of Britain during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Jodie Burrage of Britain plays a backhand return to Leolia Jeanjean of France during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Arthur Rinderknech of France plays a backhand return to Frances Tiafoe of the U.S. during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Iga Swiatek of Poland takes a selfie with fans after defeating Katerina Siniakova of the Czech Republic in their first round match at the Australian Open tennis championship in Melbourne, Australia.

Katerina Siniakova of the Czech Republic plays a forehand return to Iga Swiatek of Poland during their first round match at the Australian Open tennis championship in Melbourne, Australia.

Jannik Sinner of Italy plays a forehand return to Nicolas Jarry of Chile during their first round match at the Australian Open tennis championship in Melbourne, Australia.