Stefanos Tsitsipas of Greece reacts after winning the second set against Jannik Sinner of Italy during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia.
Daniil Medvedev of Russia reacts after winning the third set against Felix Auger-Aliassime of Canada during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia.
Daniil Medvedev, left, of Russia is congratulated by Felix Auger-Aliassime of Canada after winning their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia.
Felix Auger-Aliassime of Canada reacts during his quarterfinal against Daniil Medvedev of Russia at the Australian Open tennis championships in Melbourne, Australia.
Stefanos Tsitsipas, left, of Greece is congratulated by Jannik Sinner of Italy after winning their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia.
Stefanos Tsitsipas of Greece plays a backhand return to Jannik Sinner of Italy during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia.
Iga Swiatek of Poland celebrates after defeating Kaia Kanepi of Estonia in their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia.
Kaia Kanepi of Estonia plays a backhand return to Iga Swiatek of Poland during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia.
Iga Swiatek of Poland plays a forehand return to Kaia Kanepi of Estonia during their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia.
Danielle Collins of the U.S. reacts as he is interviewed following her win over Alize Cornet of France in their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia.
Danielle Collins, left, of the U.S. is congratulated by Alize Cornet of France following their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia.
Danielle Collins of the U.S. reacts after defeating Alize Cornet of France in their quarterfinal match at the Australian Open tennis championships in Melbourne, Australia.
