After drama-filled U.S. Open win, Naomi Osaka scores Nissan endorsement deal

Naomi Osaka's U.S. Open win was overshadowed by Serena Williams' dispute with the umpire, but the budding Japanese tennis star did enough to sign a major endorsement deal, with more likely on the way. Nissan on Thursday named Osaka its newest "brand ambassador," meaning she will appear in global ads for the automaker and will also be provided Nissan vehicles while on tour.