Hard quarantine didn't stop Brady in Australia; Osaka did

Japan's Naomi Osaka, right, holds the Daphne Akhurst Memorial Cup after defeating United States Jennifer Brady, left, in the women's singles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Feb. 20, 2021.(AP Photo/Mark Dadswell)

United States' Jennifer Brady reacts after losing a point to Japan's Naomi Osaka during the women's singles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Feb. 20, 2021.(AP Photo/Hamish Blair)

United States' Jennifer Brady hits a forehand return to Japan's Naomi Osaka during the women's singles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Feb. 20, 2021.(AP Photo/Hamish Blair)

United States' Jennifer Brady holds her runners-up trophy after she lost to Japan's Naomi Osaka in the women's singles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Feb. 20, 2021.(AP Photo/Andy Brownbill)