Argentine tennis player Juan Ignacio Chela and Spanish veteran Carlos Moya have reached the quarterfinals at the U.S. Open in Flushing Meadows, New York.

Chela needed three hours and 41 minutes and five sets to defeat Stanilas Warwrinka of Switzerland, 4-6, 6-2, 7-6, 1-6, 6-4. The Argentine will next face the winner of all-Spanish encounter between second seed Rafael Nadal and 15th seed David Ferrer.

Moya, the 17th seed, reached the quarterfinals for the first time since 1998 with a four-sets victory over 19-year-old Latvian Ernest Gulbis, 7-5, 6-2, 6-7, 6-4.

The 31-year-old Moya moves on to play third seed Novak Djokovic of Serbia, who ousted Argentine Juan Monaco, 7-5, 7-6, 6-7, 6-1.

The featured Tuesday night match on the women's side will be top seed Justine Henin of Belgium against eighth seed Serena Williams of the United States.

Some information for this report was provided by AP.