MLB: Washington 4, Arizona 1

Aug. 22, 2011 at 10:15 PM

WASHINGTON, Aug. 22 (UPI) -- Jayson Werth's three-run homer and Ross Detwiler's strong start for Washington Monday, stretched Arizona's losing streak to six with a 4-1 Nationals win.

Werth's shot in the fourth inning put the Nationals up 4-0 and Jonny Gomes added an RBI as Washington took its fifth win in seven contests in the opener of a four-game series against the Diamondbacks.

Detwiler (2-3) went 6 2/3 innings to pick up the victory, allowing one run on six hits and a walk. He struck out three.

Henry Rodriguez and Ryan Mathheus combined for 1 1/3 scoreless frames and Drew Storen worked a 1-2-3 ninth to record his 34th save.

Arizona's Joe Saunders (8-11) was tagged for four runs on six hits in a six-inning start as the National League West-leading D-backs saw their lead over San Francisco shrink to one game.

Henry Blanco delivered a solo shot for Arizona.

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