The Nationals will use just one of their many call-ups in today’s starting lineup, sending Chris Marrero to first and Steve Lombardozzi back to the bench after two straight starts.

Nationals

1. Ian Desmond, SS

2. Jayson Werth, CF

3. Ryan Zimmerman, 3B

4. Michael Morse, 1B

5. Jonny Gomes, RF

6. Danny Espinosa, 2B

7. Chris Marrero, 1B

8. Jesus Flores, C

9. John Lannan, SP

Astros

1. Jordan Schafer, CF

2. Jason Bourgeois, RF

3. J.D. Martinez, LF

4. Carlos Lee, 1B

5. Chris Johnson, 3B

6. Angel Sanchez, SS

7. Jose Altuve, 2B

8. Carlos Corporan, C

9. Wandy Rodriguez, SP