Jhoulys Chacin takes on Dan Haren in the series opener.
Nationals Lineup:
CF Denard Span
LF Roger Bernadina
3B Ryan Zimmerman
RF Jayson Werth
1B Adam LaRoche
SS Ian Desmond
2B Anthony Rendon
C Kurt Suzuki
P Dan Haren
Rockies Lineup:
CF Dexter Fowler
3B Nolan Arenado
LF Carlos Gonzalez
SS Troy Tulowitzki
1B Todd Helton
C Wilin Rosario
RF Tyler Colvin
2B DJ LeMahieu
P Jhoulys Chacin