Naomi Osaka continued to impress with her style and staying power at the U.S. Open on Saturday, as the Japanese 13th?seed shrugged off a late Achilles problem to beat Belgian Elise Mertens 6-3, 3-6, 7-5 to reach the fourth round.

For her latest eye-catching walk-on look, the four-time?major champion blended boardroom and locker room aesthetics in a gray checked blazer-hoodie and wide-leg pants, putting a tailored twist on traditional prematch attire.

She looked to be on course for a business-like win after ?the ?first set but was dragged into a battle in the third, where she ?had to fight through the Achilles issue to advance.