Tonight's lineups:
NATIONALS (41-30)
2B Danny Espinosa
CF Bryce Harper
3B Ryan Zimmerman
RF Michael Morse
1B Adam LaRoche
SS Ian Desmond
LF Tyler Moore
C Jesus Flores
LHP Gio Gonzalez
ROCKIES (28-44)
CF Dexter Fowler
3B Jordan Pacheco
LF Carlos Gonzalez
RF Michael Cuddyer
1B Todd Helton
2B Chris Nelson
C Wilin Rosario
SS Jonathan Herrera
LHP Christian Friedrich