Flavia Pennetta


NEW YORK - -Third-seeded Rafael Nadal withstood a first-set barrage by Gael Monfils and advanced to the U.S. Open quarterfinals Tuesday night at Arthur Ashe Stadium with a 6-7 (3), 6-3, 6-1, 6-3 win.

Nadal's comeback saved him from experiencing the same result as second-seeded Andy Murray, who exited with a lifeless performance in a 7-5, 6-2, 6-2 loss to 16th-seeded Marin Cilic of Croatia. Murray, who was a finalist here last year, called it the "worst match of his life." And with those results, Nadal moves ahead of Murray and back to the No. 2 spot in the ATP computer rankings.

In the first night match, Flavia Pennetta hit lovely lobs that caused Serena Williams...