Belinda Bencic stopped Anastasia Pavlyuchenkova in three sets to reach the semifinals of the Tokyo 2020 Olympic Games at the Ariake Coliseum in Tokyo, Japan, 28 July 2021. EPA-EFE/RUNGROJ YONGRITAnastasia Pavlyuchenkova of Russia in action against Belinda Bencic of Switzerland during the quarterfinals of the Tokyo 2020 Olympic Games at the Ariake Coliseum in Tokyo, Japan, 28 July 2021. EPA-EFE/RUNGROJ YONGRITThird-seeded Stefanos Tsitsipas of Greece lost to French left-hander Ugo Humbert in the round of 16. EPA-EFE/MICHAEL REYNOLDSWorld No. 2 Daniil Medvedev beat the heat and Fabio Fognini to set up a quarterfinal vs. sixth-seeded Pablo Carreno Busta. EPA-EFE/RUNGROJ YONGRITFabio Fognini tosses his racquet during his Olympics loss to Daniil Medvedev. EPA-EFE/RUNGROJ YONGRITPlaying amid stifling heat, Daniil Medvedev took two medical timeouts for treatment. EPA-EFE/RUNGROJ YONGRITNovak Djokovic celebrates his victory over Alejandro Davidovich Fokina of Spain at the Tokyo 2020 Olympic Games at the Ariake Coliseum in Tokyo, Japan, 28 July 2021. EPA-EFE/RUNGROJ YONGRITAlejandro Davidovich Fokina of Spain in action against Novak Djokovic. EPA-EFE/RUNGROJ YONGRITNo. 4-seeded Alexander Zverev will face Jeremy Chardy for a semifinal spot. EPA-EFE/MICHAEL REYNOLDSNina Stojanovic (L) and Novak Djokovic (R) of Serbia celebrate a point during their mixed doubles win against Stefani Luisa and Marcelo Melo of Brazil. EPA-EFE/RUNGROJ YONGRIT