Rublev Upsets Dimitrov; Thiem Holds off Fritz on Day Four of U.S. Open
Russian teenager Andrey Rublev (pictured above) notched the biggest win of his career on Thursday, knocking out the seventh-seeded Grigor Dimitrov of Bulgaria 7-5, 7-6(3), 6-3 to reach the U.S. Open third round. Rublev, just 19-years-old, powered his way into the third round of a major for the first time in his career, hitting 36…

