From Naomi Osaka to Serena Williams: The Richest Women in Sports
Naomi Osaka tops Serena Williams as world's highest-earning female athlete, Tennis
Naomi Osaka and Serena Williams net worth: how much have they made? - AS USA
Serena Williams, Naomi Osaka, and the trials of excellence for black women - The Boston Globe
Tennis Champion Naomi Osaka's $8.5M Adidas Deal Biggest Ever for a Woman
Serena Williams Vs. Naomi Osaka: By The Numbers
Serena Williams Vs. Naomi Osaka: By The Numbers
Serena Williams net worth: How much is US Open 2018 finalist worth?, Tennis, Sport
Naomi Osaka Net Worth: How the Tennis Star Spends Money
Naomi Osaka - Wikipedia