2021/02/08 15:40 Japan s Kei Nishikori serves to Spain s Pablo Carreno Busta during their first round match at the Australian Open tennis championship in Melbourne, Au. Japan s Kei Nishikori serves to Spain s Pablo Carreno Busta during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Feb. 8, 2021.(AP Photo/Andy Brownbill) A spectator watches the first round match between Russia s Anastasia Pavlyuchenkova and Japan s Naomi Osaka on Rod Laver Arena at the Australian Open . A spectator watches the first round match between Russia s Anastasia Pavlyuchenkova and Japan s Naomi Osaka on Rod Laver Arena at the Australian Open tennis championship in Melbourne, Australia, Monday, Feb. 8, 2021.(AP Photo/Rick Rycroft)