Opening a four-game series in Colorado against the Rockies, the Nationals have their standard lineup against right-hander Esmil Rogers, who’s taking over for ace Ubaldo Jimenez, whom the Rockies traded to the Cleveland Indians last week. Ross Detwiler makes his return to the rotation after five appearances in long relief.

Nationals

1. Rick Ankiel, CF

2. Danny Espinosa, 2B

3. Ryan Zimmerman, 3B

4. Michael Morse, 1B

5. Jayson Werth, RF

6. Laynce Nix, LF

7. Ian Desmond, SS

8. Wilson Ramos, C

9. Ross Detwiler, SP