Naomi Osaka Reportedly Set to sign Adidas' Biggest Deal With Female Athletebr Osaka has agreed to a deal worth $8.5 million annually, according to 'The Times'.br Osaka won the US Open Saturday, her first br Grand Slam title. Osaka could become the second-highest-paid woman this year, 'The New York Post' believes another endorsement, potentially with a car manufacturer, could also be on the horizon.