North Carolina: American Mardy Fish retired because of heat stroke during the third set of his second-round match on Tuesday at the Winston-Salem Open. No. 11 seed Jarkko Nieminen was leading Fish 7-5, 6-7 (3), 3-2 when Fish resigned.
Fish said in a statement issued by the ATP he developed "heat stroke" and the "very hot and humid" weather made it difficult to continue the match. "The weather just got to me a little bit and I just couldn't go any more," Fish said.
Slovakia's Martin Klizan, the 14th seed, was upset 6-4, 6-1 by Spain's Roberto Bautista Agut in the second round. Eighth-seeded Juan Monaco of Argentina defeated France's Nicolas Mahut 6-7 (4), 6-3, 6-4 in the final hard-court tune-up before the US Open.
In other second-round matches, fifth-seeded Benoit Paire of France beat American James Blake 7-6 (9), 2-6, 6-3; seventh-seeded Fernando Verdasco of Germany beat American Tim Symczek 3-6, 6-3, 6-3; ninth-seeded Jurgen Melzer of Austria beat qualifier Thiemo de Bakker 7-5, 6-7 (4), 4-2; and 13th-seeded Dmitry Tursunov of Russia defeated qualifier David Goffin of Germany 4-6, 7-5, 6-1.
Eleven seeded players had second-round matches on Tuesday. Top seed Tomas Berdych and two-time defending champion John Isner withdrew on Monday with injuries, and two other seeded players were upset that night.