In Davey Johnson’s first game managing in Baltimore in 15 years, the Nationals will send Jordan Zimmerman to the mound against Jason Hammel.

Nationals

1. Steve Lombardozzi, LF

2. Bryce Harper, CF

3. Ryan Zimmerman, 3B

4. Adam LaRoche, 1B

5. Michael Morse, DH

6. Ian Desmond, SS

7. Danny Espinosa, 2B

8. Roger Bernadina, RF

9. Jesus Flores, C

— Jordan Zimmermann, SP

Orioles

1. Brian Roberts, 2B

2. J.J. Hardy, SS

3. Chris Davis, RF

4. Adam Jones, CF

5. Matt Wieters, C

6. Wilson Betemit, 3B

7. Mark Reynolds, 1B

8. Nick Johnson, DH

9. Steve Pearce, LF

— Jason Hammel, SP