PORTSCHACH, Austria, May 22 (UPI) -- Two-time defending champion Nikolay Davydenko and former world No. 1 Australian Lleyton Hewitt were winners Tuesday at the Hydo Group International.

PRTSCHACH, Austria, May 21 (UPI) -- Second-seeded Andy Roddick was a straight-set winner Monday in the first round of the Hypo Group Tennis International tournament in Austria.

BUENOS AIRES, Feb. 20 (UPI) -- Peru's Luis Horna, ranked 50th in the world, upset top seed David Nalbandian in his home country Tuesday at the Copa Telmex tennis tournament.

VINA DEL MAR, Chile, Feb. 4 (UPI) -- The scheduled final of the men's Movistar Open Sunday at Vina del Mar, Chile, was postponed until Monday by rain.

VINA DEL MAR, Chile, Feb. 3 (UPI) -- Third-seeded Chilean Nicolas Massu and Peruvian Luis Horna advanced Saturday to the finals of the clay-court Movistar Open in Vina del Mar, Chile.

VINA DEL MAR, Chile, Jan. 31 (UPI) -- Third-seeded Nicolas Massu locked up a quarterfinal berth Wednesday in the round-robin portion of the Movistar Open tennis tournament in Chile.

VINA DEL MAR, Chile, Jan. 29 (UPI) -- Former three-time French Open champion Gustavo Kuerten was among Monday's round-robin losers at the Movistar Open in Chile.

BUCHAREST, Romania, Sept. 12 (UPI) -- Top-seeded Russian Dmitry Tursunov and defending champion Florent Serra of France had first-round wins Tuesday at the BCR Open Romania tennis tournament.

FLUSHING MEADOWS, N.Y., Sept. 1 (UPI) -- Andre Agassi outlasted upstart Marcos Baghdatis, 6-4, 6-4, 3-6, 5-7, 7-5, in a marathon second-round match at the U.S. Open in Flushing Meadows, N.Y.