John Isner, Jo-Wilfried Tsonga win
WINSTON-SALEM, N.C. -- Defending champion John Isner and top seed Jo-Wilfried Tsonga of France both won Tuesday in the second round of the Winston-Salem Open.
The third-seeded Isner, the highest-ranked American (10th) in the world rankings, was pushed to three sets before beating Slovakia's Martin Klizan 4-6, 6-3, 7-5.
Tsonga, the highest-ranked player (sixth) in the final hard-court tournament before the U.S. Open, beat Brazil's Thomaz Bellucci 6-3, 7-6 (7-2).
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