Naomi Osaka is reportedly set to sign the biggest deal Adidas has ever agreed to with a female athlete.
Osaka, a 20-year-old tennis player, just won the US Open — her first Grand Slam title.
But her new deal with Adidas could dwarf her earnings from tennis, The Times reports.
Osaka is reportedly on a "six figure" salary with Adidas that will expire this year.
The Times says a contract worth an estimated $8.5 million a year will be announced Thursday.
This would be Adidas' biggest deal with a female athlete, according to Yahoo, which also says it would see the Japanese star rocket up Forbes' list of the highest-paid women in sports.
With the new endorsement deal, Osaka could become the second-highest-paid woman this year, above her fellow tennis player Caroline Wozniacki but one rung below Williams. »