Naomi Osaka stepped on court in another new look for her third round match in a blazer and she eventually took care of business in a tense three-set victory against Elise Mertens to reach the fourth round of the US Open.
Source: [Sky Sports](https://www.skysports.com/tennis/news/12040/13582169/us-open-naomi-osaka-takes-care-of-business-against-elise-mertens-while-iva-jovic-edges-out-good-friend-alex-eala-in-thriller)