Michael Morse has the day off, with Laynce Nix replacing him at first base and at cleanup. Morse had a large hunk of ice on his left elbow last night, so the plunking from last week may still be having an effect. Nix also has outstanding numbers against Phillies right-hander Roy Oswalt.

Nationals

1. Ian Desmond, SS

2. Rick Ankiel, CF

3. Ryan Zimmerman, 3B

4. Laynce Nix, 1B

5. Jayson Werth, RF

6. Danny Espinosa, 2B

7. Jonny Gomes, LF

8. Wilson Ramos, C

9. Livan Hernandez, P

Phillies:

1. Jimmy Rollins, SS

2. John Mayberry, CF

3. Chase Utley, 2B

4. Ryan Howard, 1B

5. Hunter Pence, RF

6. Raul Ibanez, LF

7. Carlos Ruiz, C

8. Wilson Valdez, 3B

9. Roy Oswal, P