PHILADELPHIA -- Shortstop Freddy Galvis went 3-for-3 and pinch-hitter Cesar Hernandez keyed a four-run seventh inning with a two-run single as the Philadelphia Phillies rallied past the Washington Nationals 4-1 on Friday night.

Washington center fielder Michael Taylor led off the game with a homer, accounting for the Nationals' run.

Gio Gonzalez, making his first start of the season for the Nationals, made the 1-0 lead stand up through 6 1/3 innings. But after retiring the leadoff hitter in the seventh, he walked left fielder Grady Sizemore and catcher Cameron Rupp and hit third baseman Andres Blanco with a 1-2 pitch to load the bases.

Xavier Cedeno came on in relief for Washington. Hernandez, batting for winning pitcher Luis Garcia (1-0), slapped the first pitch through the right side, scoring pinch-runner Odubel Herrera and Rupp.

Cedeno hit center fielder Ben Revere with a pitch, reloading the bases. Galvis then greeted Craig Stammen, the third Washington pitcher of the inning, with an RBI single to right. Second baseman Chase Utley made it 4-1 with a sacrifice fly.

Philadelphia starter Jerome Williams, 0-4 with a 7.40 ERA in spring training, allowed the leadoff homer to Taylor but otherwise went unscathed in six innings. He allowed five hits and one walk while striking out six.

Luis Garcia and Ken Giles each pitched a scoreless inning in relief for the Phils. Jonathan Papelbon worked a 1-2-3 ninth for his second save of the season.

Taylor hammered a 3-2 fastball down the left-field line for his homer in the top of the first, and the Nationals put runners at the corners with two outs. Williams retired shortstop Ian Desmond on a fly to left to end the threat.

The Nats also mounted a mild threat in the fourth, but Sizemore gunned down Desmond trying to stretch a single into a double.

Gonzalez allowed a single and two walks in the bottom of the first but escaped unscathed in part because he picked Revere off first base after his leadoff hit.

The Phillies also had runners in scoring position in the third and fifth but failed to score.

NOTES: Phillies OF Domonic Brown, on the disabled list since March 27 with left Achilles tendinitis, played five innings for Class A Clearwater on Thursday and was scheduled to play five more Friday night. Manager Ryne Sandberg said that if all goes well, Brown will appear at the Triple-A level as well, and that it will be "two or three weeks" before he plays in a major league game. ... Philadelphia RHP Chad Billingsley, also on the disabled list since March 27 following right flexor tendon surgery, is scheduled to make a rehab start for Triple-A Lehigh Valley on Saturday. ... Nationals OF Jayson Werth, yet another player who landed on the DL March 27 following AC joint surgery, was scheduled to continue a rehab assignment with Class A Potomac on Friday.