Iga Swiatek of Poland reacts after defeating Rebecca Sramkova of Slovakia in their second round match at the Australian Open tennis championship in Melbourne, Australia.

Ons Jabeur, right, of Tunisia is congratulated by Camila Osorio of Colombia following their second round match at the Australian Open tennis championship in Melbourne, Australia.

Emma Navarro of the U.S. celebrates after defeating Wang Xiyu of China during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Gael Monfils of France reacts after defeating Daniel Altmaier of Germany in their second round match at the Australian Open tennis championship in Melbourne, Australia.

Taylor Fritz of the U.S. celebrates after defeating Cristian Garin of Chile in their second round match at the Australian Open tennis championship in Melbourne, Australia.

Alex de Minaur of Australia waves after defeating Tristan Boyer of the U.S. in their second round match at the Australian Open tennis championship in Melbourne, Australia.

Lorenzo Musetti of Italy celebrates after defeating Denis Shapovalov of Canada during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Ben Shelton, left, of the U.S. is congratulated by Pablo Carreno Busta of Spain following their second round match at the Australian Open tennis championship in Melbourne, Australia.

Iva Jovic of the U.S. plays a backhand return to Elena Rybakina of Kazakhstan during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Wang Xiyu of China plays a forehand return to Emma Navarro of the U.S. during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Beatriz Haddad Maia of Brazil plays a backhand return to Erika Andreeva of Russia during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Destanee Aiava of Australia plays a forehand return to Danielle Collins of the U.S. during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Danielle Collins of the U.S. plays a forehand return to Destanee Aiava of Australia during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Madison Keys of the U.S. plays a forehand return to Elena-Gabriela Ruse of Romania during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Jannik Sinner of Italy plays a backhand return to Tristan Schoolkate of Australia during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Matteo Berrettini of Italy plays a forehand return to Holger Rune of Denmark during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Fabian Marozsan of Hungary plays a shot between his legs to Frances Tiafoe of the U.S. during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Eva Lys of Germany reacts after defeating Varvara Gracheva of France during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Corentin Moutet of France reacts after defeating Mitchell Krueger of the U.S. in their second round match at the Australian Open tennis championship in Melbourne, Australia.

Frances Tiafoe of the U.S. plays a forehand return to Fabian Marozsan of Hungary during their second round match at the Australian Open tennis championship in Melbourne, Australia.

Jannik Sinner of Italy and Tristan Schoolkate of Australia play their second round match on Rod Laver Arena at the Australian Open tennis championship in Melbourne, Australia.