Phillies 4, Nationals 1: Cliff Lee pitched seven innings of one-run ball and put host Philadelphia ahead with an RBI double, as the Phillies finished off a three-game sweep of National League East leader Washington.
Jimmy Rollins hit his team-high 15th home run - a two-run shot to cap the three-run fifth - for Philadelphia, which has won seven of nine. Laynce Nix padded the lead with a solo shot in the sixth to make it 4-0.
The Nationals have lost four straight for the first time since doing so from June 15-19 against the New York Yankees and Tampa Bay Rays.
Washington was poised to put a major dent in the Phillies' 4-0 lead in the seventh, when everyone in a Nationals uniform thought Adam LaRoche had made it 4-2 with a homer to right. Instead, the ball was ruled to be in play, LaRoche was caught in a rundown between second and third for the first out, and Washington wound up with just one run. The play was reviewed and upheld.
Lee (3-7) allowed one run on seven hits over seven innings and Josh Lindblom earned his first save by recording the final five outs with three strikeouts.
Nationals starter Jordan Zimmermann (9-8) took the loss, allowing three runs on five hits over five innings.
GAME NOTEBOOK: Lee's past two wins - and two of his three this season - have come against Washington. … Former Phillies OF Jayson Werth went 1-for-4 and finished the series 2-for-11 with six strikeouts. … Nix's homer was his first against a left-handed pitcher since 2004. … Phillies OF Juan Pierre tallied his 586th career stolen base, tying Maury Wills for 19th all-time.