Home Japan’s Naomi Osaka (L) is congratulated by Serena Williams of the US after their women’s singles semi-final match on day eleven of the Australian Open tennis tournament in Melbourne on February 18, 2021. (Photo by Brandon MALONE / AFP) / — IMAGE RESTRICTED TO EDITORIAL USE – STRICTLY NO COMMERCIAL USE — (Photo by BRANDON MALONE/AFP via Getty Images) Japan's Naomi Osaka (L) is congratulated by Serena Williams of the US after their women's singles semi-final match on day eleven of the Australian Open tennis tournament in Melbourne on February 18, 2021. (Photo by Brandon MALONE / AFP) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE -- (Photo by BRANDON MALONE/AFP via Getty Images)

Japan’s Naomi Osaka (L) is congratulated by Serena Williams of the US after their women’s singles semi-final match on day eleven of the Australian Open tennis tournament in Melbourne on February 18, 2021. (Photo by Brandon MALONE / AFP) / — IMAGE RESTRICTED TO EDITORIAL USE – STRICTLY NO COMMERCIAL USE — (Photo by BRANDON MALONE/AFP via Getty Images)

Japan’s Naomi Osaka (L) is congratulated by Serena Williams of the US after their women’s singles semi-final match on day eleven of the Australian Open tennis tournament in Melbourne on February 18, 2021. (Photo by Brandon MALONE / AFP) / — IMAGE RESTRICTED TO EDITORIAL USE – STRICTLY NO COMMERCIAL USE — (Photo by BRANDON MALONE/AFP via Getty Images)

Naomi Osaka of Japan plays a forehand in her Women’s Singles Semifinals match against Serena Williams of the United States during day 11 of the 2021 Australian Open at Melbourne Park on February 18, 2021 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images)
Naomi Osaka of Japan and Serena Williams of the United States of America embrace at the completion of their match during the semifinals of the 2021 Australian Open on February 18 2021, at Melbourne Park in Melbourne, Australia. (Photo by Jason Heidrich/Icon Sportswire via Getty Images)