2021 Australian Open: What to Watch on Thursday Night. Halep, Simona, Williams, Serena, Thiem, Dominic, Raonic, Milos, Auger-Aliassime, Felix (2000- ), Shapovalov, Denis (1999- ), Kyrgios, Nick, Jabeur, Ons, Osaka, Naomi (1997- ), Li, Ann (2000- ), Sabalenka, Aryna, Fritz, Taylor Harry (1997- )