Game 21 lineups: Phillies at Nationals

The Nationals are looking to snap a three-game losing streak against Philadelphia today as they wrap up their series with the Phillies with an afternoon matchup at Nationals Park.

This is also the first time the Nationals have lost two in a row at home this season.

Right-hander Tanner Roark (2-2, 2.63 ERA) takes on right-hander Aaron Nola (1-2, 4.50).

Roark is 2-5 with a 6.91 ERA in seven games (five starts) in his career against the Phillies. In his career, Roark loves to pitch at home, going 14-8 with one save and a 2.70 ERA in 42 games.

Nola allowed seven runs in five innings in an 8-1 loss to the Nationals on April 16. The Nationals scored three runs against him in the first inning, highlighted by a Daniel Murphy RBI triple. Bryce Harper also launched a two-run shot off of him in the fifth.

Nola bounced back in his last start earning his first win of the season with seven innings of four-hit one-run ball at Milwaukee.

This is unusual territory for the Nationals, as they have lost their first series of the season and have scored only five runs in their last 25 innings.

Plus, after this game, the Nationals are embarking on a grueling 10-game road trip against the Cardinals (12-9), Royals (12-9) and Chicago Cubs (15-5). These clubs are a combined 18-9 (.667) at home.

Manager Dusty Baker has shaken up the lineup today, giving Michael A. Taylor and Anthony Rendon the day off, while moving Danny Espinosa up to the No. 2 spot in the order.

WASHINGTON NATIONALS vs. PHILADELPHIA PHILLIES

Where: Nationals Park
Gametime: 4:05 p.m. EDT

TV: MASN, MLB.tv

Radio: 99.1 FM, 106.7 FM XM 185, MLB.com

Weather: Cloudy, 54 degrees, no precipitation first pitch, 25 percent chance of rain at 6 p.m., winds east at 7 mph

NATIONALS

CF Matt den Dekker
SS Danny Espinosa
RF Bryce Harper
1B Ryan Zimmerman
2B Daniel Murphy
LF Jayson Werth
3B Stephen Drew
C Pedro Severino
RHP Tanner Roark

PHILLIES

CF Odubel Herrera
SS Freddy Galvis
3B Markiel Franco
1B Ryan Howard
C Cameron Rupp
2B Cesar Hernandez
LF David Lough
RHP Aaron Nola
RF Peter Bourjos