Isner Ousted by Istomin in Memphis
World number 63-ranked Denis Istomin defeated third-seeded American John Isner 6-4, 6-3 in the first round of the U.S. National Indoor Tennis Championships at the Racquet Club of Memphis in Memphis, Tenn. Istomin outserved Isner, winning 86 percent of his service points. Istomin broke Isner three times to clinch the upset in just over an hour,…

