His 15th RBI ruined a sparkling effort by Mets' starter Mike Pelphrey, who carried a no-hitter into the top of the seventh.

Aaron Boone, who had two of Washington's hits, broke up Pelfrey's no-hit bid with a single to right to start the seventh.

In the eighth, Jesus Flores doubled, Willie Harris, a pinch-hitter, bunted his way on before Lopez' sacrifice fly.

Harris made a diving catch in left field to rob the Mets of a potential tying run in the ninth and Carlos Beltran was doubled off third base to end the game.

Winner Jason Bergmann (1-1) yielded three hits in seven scoreless innings with two walks and nine strikeouts. Luis Ayala gave up a hit in the eighth and Jon Rauch earned his ninth save.

Luis Castillo had two of the Mets' five hits.