NEW YORK, May 14 (UPI) -- Cristian Guzman finished off a four-run seventh with a two-run single Wednesday, pushing Washington to a 5-3 victory over the New York Mets.

The Nationals got a solo homer from Ryan Zimmerman while downing the Mets for the second time in three games.

Tim Redding (5-3) limited the Mets to two hits and a run over six innings to get the win. Jon Rauch recorded the final four outs for his eighth save.

The loss went to Claudio Vargas (0-1), who made his debut with the Mets after having his contract purchased from Class AAA New Orleans earlier in the week. He allowed three hits and two runs over 6 1/3.

Washington had a 1-0 lead going into the seventh and broke the game open with a big inning that started when Vargas issued a one-out walk to Elijah Dukes.

Aaron Heilman came on in relief of Vargas and retired the first man he faced. But Jesus Flores then singled to left, scoring Dukes. Pinch-hitter Willie Harris drew a walk and Felipe Lopez singled in Flores.

Harris and Lopez both advanced a base on an unsuccessful throw home and Guzman followed with a single to center, scoring both runners.